Home / 71,910,338.91-99,236,224.92-38,870,588.57

Finding the Fourth Proportional to 71,910,338.91, 99,236,224.92 and 38,870,588.57

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Solution

The fourth proportional to 71,910,338.91, 99,236,224.92 and 38,870,588.57 is: 53,641,389.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,910,338.91 : 99,236,224.92 = 38,870,588.57 : x
  2. Step 2: Convert to fraction form
    71,910,338.91/99,236,224.92 = 38,870,588.57/x
  3. Step 3: Cross multiply
    71,910,338.91x = 99,236,224.92 × 38,870,588.57
  4. Step 4: Simplify right side
    71,910,338.91x = 3,857,370,470,179,376
  5. Step 5: Solve for x
    x = 3,857,370,470,179,376/71,910,338.91
  6. Step 6: Final answer
    x = 53,641,389.10

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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.