Home / 18,822,100.02-28,220,760.27-12,412,809.78

Finding the Fourth Proportional to 18,822,100.02, 28,220,760.27 and 12,412,809.78

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Solution

The fourth proportional to 18,822,100.02, 28,220,760.27 and 12,412,809.78 is: 18,611,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,822,100.02 : 28,220,760.27 = 12,412,809.78 : x
  2. Step 2: Convert to fraction form
    18,822,100.02/28,220,760.27 = 12,412,809.78/x
  3. Step 3: Cross multiply
    18,822,100.02x = 28,220,760.27 × 12,412,809.78
  4. Step 4: Simplify right side
    18,822,100.02x = 350,298,929,078,491.44
  5. Step 5: Solve for x
    x = 350,298,929,078,491.44/18,822,100.02
  6. Step 6: Final answer
    x = 18,611,043.86

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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.