Home / 1,277,716,478.25-1,763,265,872.13-720,797,803.05

Finding the Fourth Proportional to 1,277,716,478.25, 1,763,265,872.13 and 720,797,803.05

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Solution

The fourth proportional to 1,277,716,478.25, 1,763,265,872.13 and 720,797,803.05 is: 994,710,632.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,277,716,478.25 : 1,763,265,872.13 = 720,797,803.05 : x
  2. Step 2: Convert to fraction form
    1,277,716,478.25/1,763,265,872.13 = 720,797,803.05/x
  3. Step 3: Cross multiply
    1,277,716,478.25x = 1,763,265,872.13 × 720,797,803.05
  4. Step 4: Simplify right side
    1,277,716,478.25x = 1,270,958,166,824,346,112
  5. Step 5: Solve for x
    x = 1,270,958,166,824,346,112/1,277,716,478.25
  6. Step 6: Final answer
    x = 994,710,632.96

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Half scale
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Double scale
Find fourth proportional to 1,277,716,479.25, 1,763,265,873.51 and 720,797,804.05
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.