Home / 664,292,488.10-996,438,732.15-319,162,892.90

Finding the Fourth Proportional to 664,292,488.10, 996,438,732.15 and 319,162,892.90

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Solution

The fourth proportional to 664,292,488.10, 996,438,732.15 and 319,162,892.90 is: 478,744,339.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,292,488.10 : 996,438,732.15 = 319,162,892.90 : x
  2. Step 2: Convert to fraction form
    664,292,488.10/996,438,732.15 = 319,162,892.90/x
  3. Step 3: Cross multiply
    664,292,488.10x = 996,438,732.15 × 319,162,892.90
  4. Step 4: Simplify right side
    664,292,488.10x = 318,026,268,350,602,176
  5. Step 5: Solve for x
    x = 318,026,268,350,602,176/664,292,488.10
  6. Step 6: Final answer
    x = 478,744,339.35

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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.