Home / 102,099,589.72-140,897,433.06-55,689,842.20

Finding the Fourth Proportional to 102,099,589.72, 140,897,433.06 and 55,689,842.20

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Solution

The fourth proportional to 102,099,589.72, 140,897,433.06 and 55,689,842.20 is: 76,851,981.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    102,099,589.72 : 140,897,433.06 = 55,689,842.20 : x
  2. Step 2: Convert to fraction form
    102,099,589.72/140,897,433.06 = 55,689,842.20/x
  3. Step 3: Cross multiply
    102,099,589.72x = 140,897,433.06 × 55,689,842.20
  4. Step 4: Simplify right side
    102,099,589.72x = 7,846,555,813,496,464
  5. Step 5: Solve for x
    x = 7,846,555,813,496,464/102,099,589.72
  6. Step 6: Final answer
    x = 76,851,981.82

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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.