Home / 77,609,124.20-116,413,686.30-66,067,997.16

Finding the Fourth Proportional to 77,609,124.20, 116,413,686.30 and 66,067,997.16

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Solution

The fourth proportional to 77,609,124.20, 116,413,686.30 and 66,067,997.16 is: 99,101,995.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,609,124.20 : 116,413,686.30 = 66,067,997.16 : x
  2. Step 2: Convert to fraction form
    77,609,124.20/116,413,686.30 = 66,067,997.16/x
  3. Step 3: Cross multiply
    77,609,124.20x = 116,413,686.30 × 66,067,997.16
  4. Step 4: Simplify right side
    77,609,124.20x = 7,691,219,095,853,530
  5. Step 5: Solve for x
    x = 7,691,219,095,853,530/77,609,124.20
  6. Step 6: Final answer
    x = 99,101,995.74

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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.