Home / 12,948,515.20-19,422,772.80-4,428,092.80

Finding the Fourth Proportional to 12,948,515.20, 19,422,772.80 and 4,428,092.80

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Solution

The fourth proportional to 12,948,515.20, 19,422,772.80 and 4,428,092.80 is: 6,642,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,515.20 : 19,422,772.80 = 4,428,092.80 : x
  2. Step 2: Convert to fraction form
    12,948,515.20/19,422,772.80 = 4,428,092.80/x
  3. Step 3: Cross multiply
    12,948,515.20x = 19,422,772.80 × 4,428,092.80
  4. Step 4: Simplify right side
    12,948,515.20x = 86,005,840,391,715.84
  5. Step 5: Solve for x
    x = 86,005,840,391,715.84/12,948,515.20
  6. Step 6: Final answer
    x = 6,642,139.20

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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.