Home / 87,120,943.20-130,723,405.20-61,506,799.20

Finding the Fourth Proportional to 87,120,943.20, 130,723,405.20 and 61,506,799.20

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Solution

The fourth proportional to 87,120,943.20, 130,723,405.20 and 61,506,799.20 is: 92,289,843.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,120,943.20 : 130,723,405.20 = 61,506,799.20 : x
  2. Step 2: Convert to fraction form
    87,120,943.20/130,723,405.20 = 61,506,799.20/x
  3. Step 3: Cross multiply
    87,120,943.20x = 130,723,405.20 × 61,506,799.20
  4. Step 4: Simplify right side
    87,120,943.20x = 8,040,378,234,376,636
  5. Step 5: Solve for x
    x = 8,040,378,234,376,636/87,120,943.20
  6. Step 6: Final answer
    x = 92,289,843.74

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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.