Home / 77,982,720.30-116,974,080.45-71,936,102.70

Finding the Fourth Proportional to 77,982,720.30, 116,974,080.45 and 71,936,102.70

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Solution

The fourth proportional to 77,982,720.30, 116,974,080.45 and 71,936,102.70 is: 107,904,154.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,982,720.30 : 116,974,080.45 = 71,936,102.70 : x
  2. Step 2: Convert to fraction form
    77,982,720.30/116,974,080.45 = 71,936,102.70/x
  3. Step 3: Cross multiply
    77,982,720.30x = 116,974,080.45 × 71,936,102.70
  4. Step 4: Simplify right side
    77,982,720.30x = 8,414,659,464,489,263
  5. Step 5: Solve for x
    x = 8,414,659,464,489,263/77,982,720.30
  6. Step 6: Final answer
    x = 107,904,154.05

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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.