Home / 57,016,020.66-78,747,062.27-38,649,419.70

Finding the Fourth Proportional to 57,016,020.66, 78,747,062.27 and 38,649,419.70

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Solution

The fourth proportional to 57,016,020.66, 78,747,062.27 and 38,649,419.70 is: 53,380,229.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,016,020.66 : 78,747,062.27 = 38,649,419.70 : x
  2. Step 2: Convert to fraction form
    57,016,020.66/78,747,062.27 = 38,649,419.70/x
  3. Step 3: Cross multiply
    57,016,020.66x = 78,747,062.27 × 38,649,419.70
  4. Step 4: Simplify right side
    57,016,020.66x = 3,043,528,259,911,888
  5. Step 5: Solve for x
    x = 3,043,528,259,911,888/57,016,020.66
  6. Step 6: Final answer
    x = 53,380,229.36

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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.