Home / 458,497,319.40-687,745,979.10-304,644,493.80

Finding the Fourth Proportional to 458,497,319.40, 687,745,979.10 and 304,644,493.80

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Solution

The fourth proportional to 458,497,319.40, 687,745,979.10 and 304,644,493.80 is: 456,966,740.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,497,319.40 : 687,745,979.10 = 304,644,493.80 : x
  2. Step 2: Convert to fraction form
    458,497,319.40/687,745,979.10 = 304,644,493.80/x
  3. Step 3: Cross multiply
    458,497,319.40x = 687,745,979.10 × 304,644,493.80
  4. Step 4: Simplify right side
    458,497,319.40x = 209,518,025,665,904,896
  5. Step 5: Solve for x
    x = 209,518,025,665,904,896/458,497,319.40
  6. Step 6: Final answer
    x = 456,966,740.70

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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.