Home / 664,440,862.60-996,661,293.90-319,311,267.40

Finding the Fourth Proportional to 664,440,862.60, 996,661,293.90 and 319,311,267.40

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Solution

The fourth proportional to 664,440,862.60, 996,661,293.90 and 319,311,267.40 is: 478,966,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,440,862.60 : 996,661,293.90 = 319,311,267.40 : x
  2. Step 2: Convert to fraction form
    664,440,862.60/996,661,293.90 = 319,311,267.40/x
  3. Step 3: Cross multiply
    664,440,862.60x = 996,661,293.90 × 319,311,267.40
  4. Step 4: Simplify right side
    664,440,862.60x = 318,245,180,923,732,864
  5. Step 5: Solve for x
    x = 318,245,180,923,732,864/664,440,862.60
  6. Step 6: Final answer
    x = 478,966,901.10

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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.