Home / 103,569,680.80-155,354,521.20-83,414,288.80

Finding the Fourth Proportional to 103,569,680.80, 155,354,521.20 and 83,414,288.80

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Solution

The fourth proportional to 103,569,680.80, 155,354,521.20 and 83,414,288.80 is: 125,121,433.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,569,680.80 : 155,354,521.20 = 83,414,288.80 : x
  2. Step 2: Convert to fraction form
    103,569,680.80/155,354,521.20 = 83,414,288.80/x
  3. Step 3: Cross multiply
    103,569,680.80x = 155,354,521.20 × 83,414,288.80
  4. Step 4: Simplify right side
    103,569,680.80x = 12,958,786,897,762,522
  5. Step 5: Solve for x
    x = 12,958,786,897,762,522/103,569,680.80
  6. Step 6: Final answer
    x = 125,121,433.20

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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.