Home / 15,013,542.38-20,662,837.97-12,378,972.83

Finding the Fourth Proportional to 15,013,542.38, 20,662,837.97 and 12,378,972.83

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Solution

The fourth proportional to 15,013,542.38, 20,662,837.97 and 12,378,972.83 is: 17,036,932.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,013,542.38 : 20,662,837.97 = 12,378,972.83 : x
  2. Step 2: Convert to fraction form
    15,013,542.38/20,662,837.97 = 12,378,972.83/x
  3. Step 3: Cross multiply
    15,013,542.38x = 20,662,837.97 × 12,378,972.83
  4. Step 4: Simplify right side
    15,013,542.38x = 255,784,709,656,113.28
  5. Step 5: Solve for x
    x = 255,784,709,656,113.28/15,013,542.38
  6. Step 6: Final answer
    x = 17,036,932.61

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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.