Home / 458,468,642.10-687,702,963.15-416,142,318.90

Finding the Fourth Proportional to 458,468,642.10, 687,702,963.15 and 416,142,318.90

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Solution

The fourth proportional to 458,468,642.10, 687,702,963.15 and 416,142,318.90 is: 624,213,478.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,468,642.10 : 687,702,963.15 = 416,142,318.90 : x
  2. Step 2: Convert to fraction form
    458,468,642.10/687,702,963.15 = 416,142,318.90/x
  3. Step 3: Cross multiply
    458,468,642.10x = 687,702,963.15 × 416,142,318.90
  4. Step 4: Simplify right side
    458,468,642.10x = 286,182,305,799,642,208
  5. Step 5: Solve for x
    x = 286,182,305,799,642,208/458,468,642.10
  6. Step 6: Final answer
    x = 624,213,478.35

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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.