Home / 54,002,721.80-81,004,082.70-13,613,205.80

Finding the Fourth Proportional to 54,002,721.80, 81,004,082.70 and 13,613,205.80

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Solution

The fourth proportional to 54,002,721.80, 81,004,082.70 and 13,613,205.80 is: 20,419,808.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,002,721.80 : 81,004,082.70 = 13,613,205.80 : x
  2. Step 2: Convert to fraction form
    54,002,721.80/81,004,082.70 = 13,613,205.80/x
  3. Step 3: Cross multiply
    54,002,721.80x = 81,004,082.70 × 13,613,205.80
  4. Step 4: Simplify right side
    54,002,721.80x = 1,102,725,248,435,319.75
  5. Step 5: Solve for x
    x = 1,102,725,248,435,319.75/54,002,721.80
  6. Step 6: Final answer
    x = 20,419,808.70

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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.