Home / 87,198,002.10-130,797,003.15-85,308,434.10

Finding the Fourth Proportional to 87,198,002.10, 130,797,003.15 and 85,308,434.10

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Solution

The fourth proportional to 87,198,002.10, 130,797,003.15 and 85,308,434.10 is: 127,962,651.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,198,002.10 : 130,797,003.15 = 85,308,434.10 : x
  2. Step 2: Convert to fraction form
    87,198,002.10/130,797,003.15 = 85,308,434.10/x
  3. Step 3: Cross multiply
    87,198,002.10x = 130,797,003.15 × 85,308,434.10
  4. Step 4: Simplify right side
    87,198,002.10x = 11,158,087,523,699,268
  5. Step 5: Solve for x
    x = 11,158,087,523,699,268/87,198,002.10
  6. Step 6: Final answer
    x = 127,962,651.15

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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.