Home / 87,120,420.20-130,680,630.30-73,515,530.60

Finding the Fourth Proportional to 87,120,420.20, 130,680,630.30 and 73,515,530.60

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Solution

The fourth proportional to 87,120,420.20, 130,680,630.30 and 73,515,530.60 is: 110,273,295.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,420.20 : 130,680,630.30 = 73,515,530.60 : x
  2. Step 2: Convert to fraction form
    87,120,420.20/130,680,630.30 = 73,515,530.60/x
  3. Step 3: Cross multiply
    87,120,420.20x = 130,680,630.30 × 73,515,530.60
  4. Step 4: Simplify right side
    87,120,420.20x = 9,607,055,875,646,936
  5. Step 5: Solve for x
    x = 9,607,055,875,646,936/87,120,420.20
  6. Step 6: Final answer
    x = 110,273,295.90

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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.