Home / 261,660,187.20-392,490,280.80-159,371,572.80

Finding the Fourth Proportional to 261,660,187.20, 392,490,280.80 and 159,371,572.80

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Solution

The fourth proportional to 261,660,187.20, 392,490,280.80 and 159,371,572.80 is: 239,057,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,660,187.20 : 392,490,280.80 = 159,371,572.80 : x
  2. Step 2: Convert to fraction form
    261,660,187.20/392,490,280.80 = 159,371,572.80/x
  3. Step 3: Cross multiply
    261,660,187.20x = 392,490,280.80 × 159,371,572.80
  4. Step 4: Simplify right side
    261,660,187.20x = 62,551,793,359,809,648
  5. Step 5: Solve for x
    x = 62,551,793,359,809,648/261,660,187.20
  6. Step 6: Final answer
    x = 239,057,359.20

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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.