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Finding the Fourth Proportional to 1,280,448,220.80, 1,797,464,803.20 and 1,280,448,220.80

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Solution

The fourth proportional to 1,280,448,220.80, 1,797,464,803.20 and 1,280,448,220.80 is: 1,797,464,803.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,448,220.80 : 1,797,464,803.20 = 1,280,448,220.80 : x
  2. Step 2: Convert to fraction form
    1,280,448,220.80/1,797,464,803.20 = 1,280,448,220.80/x
  3. Step 3: Cross multiply
    1,280,448,220.80x = 1,797,464,803.20 × 1,280,448,220.80
  4. Step 4: Simplify right side
    1,280,448,220.80x = 2,301,560,609,208,062,208
  5. Step 5: Solve for x
    x = 2,301,560,609,208,062,208/1,280,448,220.80
  6. Step 6: Final answer
    x = 1,797,464,803.20

Related Problems

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Half scale
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Double scale
Find fourth proportional to 1,280,448,221.80, 1,797,464,804.60 and 1,280,448,221.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.