Home / 1,010,419,215.20-1,515,628,822.80-934,836,495.20

Finding the Fourth Proportional to 1,010,419,215.20, 1,515,628,822.80 and 934,836,495.20

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Solution

The fourth proportional to 1,010,419,215.20, 1,515,628,822.80 and 934,836,495.20 is: 1,402,254,742.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,419,215.20 : 1,515,628,822.80 = 934,836,495.20 : x
  2. Step 2: Convert to fraction form
    1,010,419,215.20/1,515,628,822.80 = 934,836,495.20/x
  3. Step 3: Cross multiply
    1,010,419,215.20x = 1,515,628,822.80 × 934,836,495.20
  4. Step 4: Simplify right side
    1,010,419,215.20x = 1,416,865,136,730,453,760
  5. Step 5: Solve for x
    x = 1,416,865,136,730,453,760/1,010,419,215.20
  6. Step 6: Final answer
    x = 1,402,254,742.80

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Half scale
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Double scale
Find fourth proportional to 1,010,419,216.20, 1,515,628,824.30 and 934,836,496.20
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.