Home / 8,155,679.78-11,257,347.12-5,255,061.68

Finding the Fourth Proportional to 8,155,679.78, 11,257,347.12 and 5,255,061.68

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Solution

The fourth proportional to 8,155,679.78, 11,257,347.12 and 5,255,061.68 is: 7,253,601.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,155,679.78 : 11,257,347.12 = 5,255,061.68 : x
  2. Step 2: Convert to fraction form
    8,155,679.78/11,257,347.12 = 5,255,061.68/x
  3. Step 3: Cross multiply
    8,155,679.78x = 11,257,347.12 × 5,255,061.68
  4. Step 4: Simplify right side
    8,155,679.78x = 59,158,053,468,770.35
  5. Step 5: Solve for x
    x = 59,158,053,468,770.35/8,155,679.78
  6. Step 6: Final answer
    x = 7,253,601.79

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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.