Home / 87,120,215.40-130,680,323.10-75,176,279.40

Finding the Fourth Proportional to 87,120,215.40, 130,680,323.10 and 75,176,279.40

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Solution

The fourth proportional to 87,120,215.40, 130,680,323.10 and 75,176,279.40 is: 112,764,419.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,215.40 : 130,680,323.10 = 75,176,279.40 : x
  2. Step 2: Convert to fraction form
    87,120,215.40/130,680,323.10 = 75,176,279.40/x
  3. Step 3: Cross multiply
    87,120,215.40x = 130,680,323.10 × 75,176,279.40
  4. Step 4: Simplify right side
    87,120,215.40x = 9,824,060,481,447,874
  5. Step 5: Solve for x
    x = 9,824,060,481,447,874/87,120,215.40
  6. Step 6: Final answer
    x = 112,764,419.10

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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.