Home / 12,948,711.70-19,423,067.55-4,428,289.30

Finding the Fourth Proportional to 12,948,711.70, 19,423,067.55 and 4,428,289.30

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Solution

The fourth proportional to 12,948,711.70, 19,423,067.55 and 4,428,289.30 is: 6,642,433.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,711.70 : 19,423,067.55 = 4,428,289.30 : x
  2. Step 2: Convert to fraction form
    12,948,711.70/19,423,067.55 = 4,428,289.30/x
  3. Step 3: Cross multiply
    12,948,711.70x = 19,423,067.55 × 4,428,289.30
  4. Step 4: Simplify right side
    12,948,711.70x = 86,010,962,204,842.22
  5. Step 5: Solve for x
    x = 86,010,962,204,842.22/12,948,711.70
  6. Step 6: Final answer
    x = 6,642,433.95

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Double scale
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Similar ratio
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1.5x scale

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.