Home / 12,948,043.30-19,422,064.95-4,428,657.70

Finding the Fourth Proportional to 12,948,043.30, 19,422,064.95 and 4,428,657.70

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Solution

The fourth proportional to 12,948,043.30, 19,422,064.95 and 4,428,657.70 is: 6,642,986.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,948,043.30 : 19,422,064.95 = 4,428,657.70 : x
  2. Step 2: Convert to fraction form
    12,948,043.30/19,422,064.95 = 4,428,657.70/x
  3. Step 3: Cross multiply
    12,948,043.30x = 19,422,064.95 × 4,428,657.70
  4. Step 4: Simplify right side
    12,948,043.30x = 86,013,677,490,717.61
  5. Step 5: Solve for x
    x = 86,013,677,490,717.61/12,948,043.30
  6. Step 6: Final answer
    x = 6,642,986.55

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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.