Home / 87,984,686.88-131,986,019.16-30,476,851.20

Finding the Fourth Proportional to 87,984,686.88, 131,986,019.16 and 30,476,851.20

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Solution

The fourth proportional to 87,984,686.88, 131,986,019.16 and 30,476,851.20 is: 45,718,390.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,984,686.88 : 131,986,019.16 = 30,476,851.20 : x
  2. Step 2: Convert to fraction form
    87,984,686.88/131,986,019.16 = 30,476,851.20/x
  3. Step 3: Cross multiply
    87,984,686.88x = 131,986,019.16 × 30,476,851.20
  4. Step 4: Simplify right side
    87,984,686.88x = 4,022,518,266,419,669
  5. Step 5: Solve for x
    x = 4,022,518,266,419,669/87,984,686.88
  6. Step 6: Final answer
    x = 45,718,390.43

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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.