Home / 80,449,129.40-111,031,750.96-47,398,813.61

Finding the Fourth Proportional to 80,449,129.40, 111,031,750.96 and 47,398,813.61

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Solution

The fourth proportional to 80,449,129.40, 111,031,750.96 and 47,398,813.61 is: 65,417,404.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,449,129.40 : 111,031,750.96 = 47,398,813.61 : x
  2. Step 2: Convert to fraction form
    80,449,129.40/111,031,750.96 = 47,398,813.61/x
  3. Step 3: Cross multiply
    80,449,129.40x = 111,031,750.96 × 47,398,813.61
  4. Step 4: Simplify right side
    80,449,129.40x = 5,262,773,267,871,322
  5. Step 5: Solve for x
    x = 5,262,773,267,871,322/80,449,129.40
  6. Step 6: Final answer
    x = 65,417,404.86

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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.