Home / 87,120,211.80-130,680,317.70-73,515,322.20

Finding the Fourth Proportional to 87,120,211.80, 130,680,317.70 and 73,515,322.20

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Solution

The fourth proportional to 87,120,211.80, 130,680,317.70 and 73,515,322.20 is: 110,272,983.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,211.80 : 130,680,317.70 = 73,515,322.20 : x
  2. Step 2: Convert to fraction form
    87,120,211.80/130,680,317.70 = 73,515,322.20/x
  3. Step 3: Cross multiply
    87,120,211.80x = 130,680,317.70 × 73,515,322.20
  4. Step 4: Simplify right side
    87,120,211.80x = 9,607,005,660,913,864
  5. Step 5: Solve for x
    x = 9,607,005,660,913,864/87,120,211.80
  6. Step 6: Final answer
    x = 110,272,983.30

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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.