Home / 38,899,809.20-58,349,713.80-11,981,716.40

Finding the Fourth Proportional to 38,899,809.20, 58,349,713.80 and 11,981,716.40

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Solution

The fourth proportional to 38,899,809.20, 58,349,713.80 and 11,981,716.40 is: 17,972,574.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,899,809.20 : 58,349,713.80 = 11,981,716.40 : x
  2. Step 2: Convert to fraction form
    38,899,809.20/58,349,713.80 = 11,981,716.40/x
  3. Step 3: Cross multiply
    38,899,809.20x = 58,349,713.80 × 11,981,716.40
  4. Step 4: Simplify right side
    38,899,809.20x = 699,129,722,772,766.25
  5. Step 5: Solve for x
    x = 699,129,722,772,766.25/38,899,809.20
  6. Step 6: Final answer
    x = 17,972,574.60

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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.