Home / 25,815,123.16-38,722,995.78-7,864,382.68

Finding the Fourth Proportional to 25,815,123.16, 38,722,995.78 and 7,864,382.68

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Solution

The fourth proportional to 25,815,123.16, 38,722,995.78 and 7,864,382.68 is: 11,796,668.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,815,123.16 : 38,722,995.78 = 7,864,382.68 : x
  2. Step 2: Convert to fraction form
    25,815,123.16/38,722,995.78 = 7,864,382.68/x
  3. Step 3: Cross multiply
    25,815,123.16x = 38,722,995.78 × 7,864,382.68
  4. Step 4: Simplify right side
    25,815,123.16x = 304,532,457,329,945.06
  5. Step 5: Solve for x
    x = 304,532,457,329,945.06/25,815,123.16
  6. Step 6: Final answer
    x = 11,796,668.78

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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.