Home / 91,863,279.40-137,794,919.10-79,392,130.60

Finding the Fourth Proportional to 91,863,279.40, 137,794,919.10 and 79,392,130.60

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Solution

The fourth proportional to 91,863,279.40, 137,794,919.10 and 79,392,130.60 is: 119,088,195.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,863,279.40 : 137,794,919.10 = 79,392,130.60 : x
  2. Step 2: Convert to fraction form
    91,863,279.40/137,794,919.10 = 79,392,130.60/x
  3. Step 3: Cross multiply
    91,863,279.40x = 137,794,919.10 × 79,392,130.60
  4. Step 4: Simplify right side
    91,863,279.40x = 10,939,832,213,203,634
  5. Step 5: Solve for x
    x = 10,939,832,213,203,634/91,863,279.40
  6. Step 6: Final answer
    x = 119,088,195.90

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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.