Home / 18,720,228.80-28,080,343.20-16,592,715.20

Finding the Fourth Proportional to 18,720,228.80, 28,080,343.20 and 16,592,715.20

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Solution

The fourth proportional to 18,720,228.80, 28,080,343.20 and 16,592,715.20 is: 24,889,072.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,720,228.80 : 28,080,343.20 = 16,592,715.20 : x
  2. Step 2: Convert to fraction form
    18,720,228.80/28,080,343.20 = 16,592,715.20/x
  3. Step 3: Cross multiply
    18,720,228.80x = 28,080,343.20 × 16,592,715.20
  4. Step 4: Simplify right side
    18,720,228.80x = 465,929,137,435,856.62
  5. Step 5: Solve for x
    x = 465,929,137,435,856.62/18,720,228.80
  6. Step 6: Final answer
    x = 24,889,072.80

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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.