Home / 103,680,418.30-155,520,627.45-76,806,562.30

Finding the Fourth Proportional to 103,680,418.30, 155,520,627.45 and 76,806,562.30

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Solution

The fourth proportional to 103,680,418.30, 155,520,627.45 and 76,806,562.30 is: 115,209,843.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,680,418.30 : 155,520,627.45 = 76,806,562.30 : x
  2. Step 2: Convert to fraction form
    103,680,418.30/155,520,627.45 = 76,806,562.30/x
  3. Step 3: Cross multiply
    103,680,418.30x = 155,520,627.45 × 76,806,562.30
  4. Step 4: Simplify right side
    103,680,418.30x = 11,945,004,761,173,514
  5. Step 5: Solve for x
    x = 11,945,004,761,173,514/103,680,418.30
  6. Step 6: Final answer
    x = 115,209,843.45

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Double scale
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Similar ratio
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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.