Home / 664,177,568.40-996,691,505.40-387,828,248.40

Finding the Fourth Proportional to 664,177,568.40, 996,691,505.40 and 387,828,248.40

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Solution

The fourth proportional to 664,177,568.40, 996,691,505.40 and 387,828,248.40 is: 581,990,628.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,177,568.40 : 996,691,505.40 = 387,828,248.40 : x
  2. Step 2: Convert to fraction form
    664,177,568.40/996,691,505.40 = 387,828,248.40/x
  3. Step 3: Cross multiply
    664,177,568.40x = 996,691,505.40 × 387,828,248.40
  4. Step 4: Simplify right side
    664,177,568.40x = 386,545,120,734,441,088
  5. Step 5: Solve for x
    x = 386,545,120,734,441,088/664,177,568.40
  6. Step 6: Final answer
    x = 581,990,628.90

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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.