Home / 159,442,603.20-220,030,791.12-86,103,738.72

Finding the Fourth Proportional to 159,442,603.20, 220,030,791.12 and 86,103,738.72

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Solution

The fourth proportional to 159,442,603.20, 220,030,791.12 and 86,103,738.72 is: 118,823,158.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,442,603.20 : 220,030,791.12 = 86,103,738.72 : x
  2. Step 2: Convert to fraction form
    159,442,603.20/220,030,791.12 = 86,103,738.72/x
  3. Step 3: Cross multiply
    159,442,603.20x = 220,030,791.12 × 86,103,738.72
  4. Step 4: Simplify right side
    159,442,603.20x = 18,945,473,748,951,376
  5. Step 5: Solve for x
    x = 18,945,473,748,951,376/159,442,603.20
  6. Step 6: Final answer
    x = 118,823,158.73

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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.