Home / 439,195,428.16-658,797,866.88-132,490,199.68

Finding the Fourth Proportional to 439,195,428.16, 658,797,866.88 and 132,490,199.68

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Solution

The fourth proportional to 439,195,428.16, 658,797,866.88 and 132,490,199.68 is: 198,736,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    439,195,428.16 : 658,797,866.88 = 132,490,199.68 : x
  2. Step 2: Convert to fraction form
    439,195,428.16/658,797,866.88 = 132,490,199.68/x
  3. Step 3: Cross multiply
    439,195,428.16x = 658,797,866.88 × 132,490,199.68
  4. Step 4: Simplify right side
    439,195,428.16x = 87,284,260,931,689,264
  5. Step 5: Solve for x
    x = 87,284,260,931,689,264/439,195,428.16
  6. Step 6: Final answer
    x = 198,736,724.78

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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.