Home / 28,246,944.70-38,980,626.99-15,857,034.85

Finding the Fourth Proportional to 28,246,944.70, 38,980,626.99 and 15,857,034.85

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Solution

The fourth proportional to 28,246,944.70, 38,980,626.99 and 15,857,034.85 is: 21,882,620.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,246,944.70 : 38,980,626.99 = 15,857,034.85 : x
  2. Step 2: Convert to fraction form
    28,246,944.70/38,980,626.99 = 15,857,034.85/x
  3. Step 3: Cross multiply
    28,246,944.70x = 38,980,626.99 × 15,857,034.85
  4. Step 4: Simplify right side
    28,246,944.70x = 618,117,160,655,280.62
  5. Step 5: Solve for x
    x = 618,117,160,655,280.62/28,246,944.70
  6. Step 6: Final answer
    x = 21,882,620.13

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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.