Home / 82,458,155.60-123,687,233.40-81,891,285.20

Finding the Fourth Proportional to 82,458,155.60, 123,687,233.40 and 81,891,285.20

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Solution

The fourth proportional to 82,458,155.60, 123,687,233.40 and 81,891,285.20 is: 122,836,927.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,458,155.60 : 123,687,233.40 = 81,891,285.20 : x
  2. Step 2: Convert to fraction form
    82,458,155.60/123,687,233.40 = 81,891,285.20/x
  3. Step 3: Cross multiply
    82,458,155.60x = 123,687,233.40 × 81,891,285.20
  4. Step 4: Simplify right side
    82,458,155.60x = 10,128,906,505,958,366
  5. Step 5: Solve for x
    x = 10,128,906,505,958,366/82,458,155.60
  6. Step 6: Final answer
    x = 122,836,927.80

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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.