Home / 57,016,013.07-78,747,051.80-38,649,412.11

Finding the Fourth Proportional to 57,016,013.07, 78,747,051.80 and 38,649,412.11

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Solution

The fourth proportional to 57,016,013.07, 78,747,051.80 and 38,649,412.11 is: 53,380,218.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,016,013.07 : 78,747,051.80 = 38,649,412.11 : x
  2. Step 2: Convert to fraction form
    57,016,013.07/78,747,051.80 = 38,649,412.11/x
  3. Step 3: Cross multiply
    57,016,013.07x = 78,747,051.80 × 38,649,412.11
  4. Step 4: Simplify right side
    57,016,013.07x = 3,043,527,257,272,470.50
  5. Step 5: Solve for x
    x = 3,043,527,257,272,470.50/57,016,013.07
  6. Step 6: Final answer
    x = 53,380,218.88

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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.