Home / 12,949,340.20-19,424,010.30-4,428,917.80

Finding the Fourth Proportional to 12,949,340.20, 19,424,010.30 and 4,428,917.80

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Solution

The fourth proportional to 12,949,340.20, 19,424,010.30 and 4,428,917.80 is: 6,643,376.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,949,340.20 : 19,424,010.30 = 4,428,917.80 : x
  2. Step 2: Convert to fraction form
    12,949,340.20/19,424,010.30 = 4,428,917.80/x
  3. Step 3: Cross multiply
    12,949,340.20x = 19,424,010.30 × 4,428,917.80
  4. Step 4: Simplify right side
    12,949,340.20x = 86,027,344,965,053.34
  5. Step 5: Solve for x
    x = 86,027,344,965,053.34/12,949,340.20
  6. Step 6: Final answer
    x = 6,643,376.70

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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.