Home / 261,930,829.20-392,896,243.80-89,413,270.80

Finding the Fourth Proportional to 261,930,829.20, 392,896,243.80 and 89,413,270.80

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Solution

The fourth proportional to 261,930,829.20, 392,896,243.80 and 89,413,270.80 is: 134,119,906.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,930,829.20 : 392,896,243.80 = 89,413,270.80 : x
  2. Step 2: Convert to fraction form
    261,930,829.20/392,896,243.80 = 89,413,270.80/x
  3. Step 3: Cross multiply
    261,930,829.20x = 392,896,243.80 × 89,413,270.80
  4. Step 4: Simplify right side
    261,930,829.20x = 35,130,138,243,192,220
  5. Step 5: Solve for x
    x = 35,130,138,243,192,220/261,930,829.20
  6. Step 6: Final answer
    x = 134,119,906.20

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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.