Home / 77,660,979.20-116,659,430.40-54,986,163.20

Finding the Fourth Proportional to 77,660,979.20, 116,659,430.40 and 54,986,163.20

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Solution

The fourth proportional to 77,660,979.20, 116,659,430.40 and 54,986,163.20 is: 82,598,166.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,660,979.20 : 116,659,430.40 = 54,986,163.20 : x
  2. Step 2: Convert to fraction form
    77,660,979.20/116,659,430.40 = 54,986,163.20/x
  3. Step 3: Cross multiply
    77,660,979.20x = 116,659,430.40 × 54,986,163.20
  4. Step 4: Simplify right side
    77,660,979.20x = 6,414,654,478,793,442
  5. Step 5: Solve for x
    x = 6,414,654,478,793,442/77,660,979.20
  6. Step 6: Final answer
    x = 82,598,166.35

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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.