Home / 12,102,680.80-16,704,545.52-7,522,461.28

Finding the Fourth Proportional to 12,102,680.80, 16,704,545.52 and 7,522,461.28

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Solution

The fourth proportional to 12,102,680.80, 16,704,545.52 and 7,522,461.28 is: 10,382,765.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102,680.80 : 16,704,545.52 = 7,522,461.28 : x
  2. Step 2: Convert to fraction form
    12,102,680.80/16,704,545.52 = 7,522,461.28/x
  3. Step 3: Cross multiply
    12,102,680.80x = 16,704,545.52 × 7,522,461.28
  4. Step 4: Simplify right side
    12,102,680.80x = 125,659,296,874,197.47
  5. Step 5: Solve for x
    x = 125,659,296,874,197.47/12,102,680.80
  6. Step 6: Final answer
    x = 10,382,765.52

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1.5x scale

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.