Home / 129,033,026.20-193,423,568.10-115,428,136.60

Finding the Fourth Proportional to 129,033,026.20, 193,423,568.10 and 115,428,136.60

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Solution

The fourth proportional to 129,033,026.20, 193,423,568.10 and 115,428,136.60 is: 173,029,515.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,033,026.20 : 193,423,568.10 = 115,428,136.60 : x
  2. Step 2: Convert to fraction form
    129,033,026.20/193,423,568.10 = 115,428,136.60/x
  3. Step 3: Cross multiply
    129,033,026.20x = 193,423,568.10 × 115,428,136.60
  4. Step 4: Simplify right side
    129,033,026.20x = 22,326,522,040,306,200
  5. Step 5: Solve for x
    x = 22,326,522,040,306,200/129,033,026.20
  6. Step 6: Final answer
    x = 173,029,515.76

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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.