Home / 15,132,901.29-20,883,907.80-8,257,760.61

Finding the Fourth Proportional to 15,132,901.29, 20,883,907.80 and 8,257,760.61

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Solution

The fourth proportional to 15,132,901.29, 20,883,907.80 and 8,257,760.61 is: 11,395,984.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,132,901.29 : 20,883,907.80 = 8,257,760.61 : x
  2. Step 2: Convert to fraction form
    15,132,901.29/20,883,907.80 = 8,257,760.61/x
  3. Step 3: Cross multiply
    15,132,901.29x = 20,883,907.80 × 8,257,760.61
  4. Step 4: Simplify right side
    15,132,901.29x = 172,454,311,213,711.78
  5. Step 5: Solve for x
    x = 172,454,311,213,711.78/15,132,901.29
  6. Step 6: Final answer
    x = 11,395,984.68

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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.