Home / 12,948,048.60-19,420,229.70-4,428,778.20

Finding the Fourth Proportional to 12,948,048.60, 19,420,229.70 and 4,428,778.20

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Solution

The fourth proportional to 12,948,048.60, 19,420,229.70 and 4,428,778.20 is: 6,642,536.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,048.60 : 19,420,229.70 = 4,428,778.20 : x
  2. Step 2: Convert to fraction form
    12,948,048.60/19,420,229.70 = 4,428,778.20/x
  3. Step 3: Cross multiply
    12,948,048.60x = 19,420,229.70 × 4,428,778.20
  4. Step 4: Simplify right side
    12,948,048.60x = 86,007,889,934,352.55
  5. Step 5: Solve for x
    x = 86,007,889,934,352.55/12,948,048.60
  6. Step 6: Final answer
    x = 6,642,536.85

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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.