Home / 664,440,897.10-996,661,345.65-319,311,301.90

Finding the Fourth Proportional to 664,440,897.10, 996,661,345.65 and 319,311,301.90

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Solution

The fourth proportional to 664,440,897.10, 996,661,345.65 and 319,311,301.90 is: 478,966,952.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,440,897.10 : 996,661,345.65 = 319,311,301.90 : x
  2. Step 2: Convert to fraction form
    664,440,897.10/996,661,345.65 = 319,311,301.90/x
  3. Step 3: Cross multiply
    664,440,897.10x = 996,661,345.65 × 319,311,301.90
  4. Step 4: Simplify right side
    664,440,897.10x = 318,245,231,832,907,392
  5. Step 5: Solve for x
    x = 318,245,231,832,907,392/664,440,897.10
  6. Step 6: Final answer
    x = 478,966,952.85

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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.