Home / 87,532,656.40-120,811,757.28-57,710,943.12

Finding the Fourth Proportional to 87,532,656.40, 120,811,757.28 and 57,710,943.12

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Solution

The fourth proportional to 87,532,656.40, 120,811,757.28 and 57,710,943.12 is: 79,652,106.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,532,656.40 : 120,811,757.28 = 57,710,943.12 : x
  2. Step 2: Convert to fraction form
    87,532,656.40/120,811,757.28 = 57,710,943.12/x
  3. Step 3: Cross multiply
    87,532,656.40x = 120,811,757.28 × 57,710,943.12
  4. Step 4: Simplify right side
    87,532,656.40x = 6,972,160,452,613,326
  5. Step 5: Solve for x
    x = 6,972,160,452,613,326/87,532,656.40
  6. Step 6: Final answer
    x = 79,652,106.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.