Home / 120,832,149.13-166,704,625.60-79,040,071.76

Finding the Fourth Proportional to 120,832,149.13, 166,704,625.60 and 79,040,071.76

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Solution

The fourth proportional to 120,832,149.13, 166,704,625.60 and 79,040,071.76 is: 109,046,687.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,832,149.13 : 166,704,625.60 = 79,040,071.76 : x
  2. Step 2: Convert to fraction form
    120,832,149.13/166,704,625.60 = 79,040,071.76/x
  3. Step 3: Cross multiply
    120,832,149.13x = 166,704,625.60 × 79,040,071.76
  4. Step 4: Simplify right side
    120,832,149.13x = 13,176,345,569,116,808
  5. Step 5: Solve for x
    x = 13,176,345,569,116,808/120,832,149.13
  6. Step 6: Final answer
    x = 109,046,687.20

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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.