Home / 31,143,694.11-42,666,151.40-29,979,281.85

Finding the Fourth Proportional to 31,143,694.11, 42,666,151.40 and 29,979,281.85

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Solution

The fourth proportional to 31,143,694.11, 42,666,151.40 and 29,979,281.85 is: 41,070,933.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,143,694.11 : 42,666,151.40 = 29,979,281.85 : x
  2. Step 2: Convert to fraction form
    31,143,694.11/42,666,151.40 = 29,979,281.85/x
  3. Step 3: Cross multiply
    31,143,694.11x = 42,666,151.40 × 29,979,281.85
  4. Step 4: Simplify right side
    31,143,694.11x = 1,279,100,578,125,475.75
  5. Step 5: Solve for x
    x = 1,279,100,578,125,475.75/31,143,694.11
  6. Step 6: Final answer
    x = 41,070,933.13

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.