Home / 458,468,708.10-687,703,062.15-416,142,384.90

Finding the Fourth Proportional to 458,468,708.10, 687,703,062.15 and 416,142,384.90

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Solution

The fourth proportional to 458,468,708.10, 687,703,062.15 and 416,142,384.90 is: 624,213,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,468,708.10 : 687,703,062.15 = 416,142,384.90 : x
  2. Step 2: Convert to fraction form
    458,468,708.10/687,703,062.15 = 416,142,384.90/x
  3. Step 3: Cross multiply
    458,468,708.10x = 687,703,062.15 × 416,142,384.90
  4. Step 4: Simplify right side
    458,468,708.10x = 286,182,392,386,133,888
  5. Step 5: Solve for x
    x = 286,182,392,386,133,888/458,468,708.10
  6. Step 6: Final answer
    x = 624,213,577.35

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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.