Home / 38,447,742.80-53,057,691.24-20,806,632.56

Finding the Fourth Proportional to 38,447,742.80, 53,057,691.24 and 20,806,632.56

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Solution

The fourth proportional to 38,447,742.80, 53,057,691.24 and 20,806,632.56 is: 28,713,048.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,447,742.80 : 53,057,691.24 = 20,806,632.56 : x
  2. Step 2: Convert to fraction form
    38,447,742.80/53,057,691.24 = 20,806,632.56/x
  3. Step 3: Cross multiply
    38,447,742.80x = 53,057,691.24 × 20,806,632.56
  4. Step 4: Simplify right side
    38,447,742.80x = 1,103,951,886,112,610.75
  5. Step 5: Solve for x
    x = 1,103,951,886,112,610.75/38,447,742.80
  6. Step 6: Final answer
    x = 28,713,048.04

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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.