Home / 11,187,619.20-16,781,428.80-5,122,339.20

Finding the Fourth Proportional to 11,187,619.20, 16,781,428.80 and 5,122,339.20

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Solution

The fourth proportional to 11,187,619.20, 16,781,428.80 and 5,122,339.20 is: 7,683,508.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,187,619.20 : 16,781,428.80 = 5,122,339.20 : x
  2. Step 2: Convert to fraction form
    11,187,619.20/16,781,428.80 = 5,122,339.20/x
  3. Step 3: Cross multiply
    11,187,619.20x = 16,781,428.80 × 5,122,339.20
  4. Step 4: Simplify right side
    11,187,619.20x = 85,960,170,574,248.97
  5. Step 5: Solve for x
    x = 85,960,170,574,248.97/11,187,619.20
  6. Step 6: Final answer
    x = 7,683,508.80

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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.