Home / 69,126,925,376.70-103,690,388,065.05-66,418,040,691.90

Finding the Fourth Proportional to 69,126,925,376.70, 103,690,388,065.05 and 66,418,040,691.90

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Solution

The fourth proportional to 69,126,925,376.70, 103,690,388,065.05 and 66,418,040,691.90 is: 99,627,061,037.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,126,925,376.70 : 103,690,388,065.05 = 66,418,040,691.90 : x
  2. Step 2: Convert to fraction form
    69,126,925,376.70/103,690,388,065.05 = 66,418,040,691.90/x
  3. Step 3: Cross multiply
    69,126,925,376.70x = 103,690,388,065.05 × 66,418,040,691.90
  4. Step 4: Simplify right side
    69,126,925,376.70x = 6,886,912,413,863,393,624,064
  5. Step 5: Solve for x
    x = 6,886,912,413,863,393,624,064/69,126,925,376.70
  6. Step 6: Final answer
    x = 99,627,061,037.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.