Home / 99,732,540.30-137,643,601.56-57,908,279.40

Finding the Fourth Proportional to 99,732,540.30, 137,643,601.56 and 57,908,279.40

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Solution

The fourth proportional to 99,732,540.30, 137,643,601.56 and 57,908,279.40 is: 79,920,797.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,732,540.30 : 137,643,601.56 = 57,908,279.40 : x
  2. Step 2: Convert to fraction form
    99,732,540.30/137,643,601.56 = 57,908,279.40/x
  3. Step 3: Cross multiply
    99,732,540.30x = 137,643,601.56 × 57,908,279.40
  4. Step 4: Simplify right side
    99,732,540.30x = 7,970,704,136,758,756
  5. Step 5: Solve for x
    x = 7,970,704,136,758,756/99,732,540.30
  6. Step 6: Final answer
    x = 79,920,797.29

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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.