Home / 9,138,404,351.05-12,609,109,545.35-5,275,873,021.92

Finding the Fourth Proportional to 9,138,404,351.05, 12,609,109,545.35 and 5,275,873,021.92

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Solution

The fourth proportional to 9,138,404,351.05, 12,609,109,545.35 and 5,275,873,021.92 is: 7,279,614,506.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,138,404,351.05 : 12,609,109,545.35 = 5,275,873,021.92 : x
  2. Step 2: Convert to fraction form
    9,138,404,351.05/12,609,109,545.35 = 5,275,873,021.92/x
  3. Step 3: Cross multiply
    9,138,404,351.05x = 12,609,109,545.35 × 5,275,873,021.92
  4. Step 4: Simplify right side
    9,138,404,351.05x = 66,524,060,880,761,856,000
  5. Step 5: Solve for x
    x = 66,524,060,880,761,856,000/9,138,404,351.05
  6. Step 6: Final answer
    x = 7,279,614,506.57

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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.