Home / 87,121,203.20-130,723,795.20-61,507,059.20

Finding the Fourth Proportional to 87,121,203.20, 130,723,795.20 and 61,507,059.20

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Solution

The fourth proportional to 87,121,203.20, 130,723,795.20 and 61,507,059.20 is: 92,290,233.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,121,203.20 : 130,723,795.20 = 61,507,059.20 : x
  2. Step 2: Convert to fraction form
    87,121,203.20/130,723,795.20 = 61,507,059.20/x
  3. Step 3: Cross multiply
    87,121,203.20x = 130,723,795.20 × 61,507,059.20
  4. Step 4: Simplify right side
    87,121,203.20x = 8,040,436,210,215,076
  5. Step 5: Solve for x
    x = 8,040,436,210,215,076/87,121,203.20
  6. Step 6: Final answer
    x = 92,290,233.78

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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.