Home / 123,948,280.85-185,706,957.96-86,981,769.77

Finding the Fourth Proportional to 123,948,280.85, 185,706,957.96 and 86,981,769.77

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Solution

The fourth proportional to 123,948,280.85, 185,706,957.96 and 86,981,769.77 is: 130,321,451.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,948,280.85 : 185,706,957.96 = 86,981,769.77 : x
  2. Step 2: Convert to fraction form
    123,948,280.85/185,706,957.96 = 86,981,769.77/x
  3. Step 3: Cross multiply
    123,948,280.85x = 185,706,957.96 × 86,981,769.77
  4. Step 4: Simplify right side
    123,948,280.85x = 16,153,119,861,035,254
  5. Step 5: Solve for x
    x = 16,153,119,861,035,254/123,948,280.85
  6. Step 6: Final answer
    x = 130,321,451.42

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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.