Home / 28,197,161.80-42,211,761.90-16,831,760.20

Finding the Fourth Proportional to 28,197,161.80, 42,211,761.90 and 16,831,760.20

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Solution

The fourth proportional to 28,197,161.80, 42,211,761.90 and 16,831,760.20 is: 25,197,509.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,197,161.80 : 42,211,761.90 = 16,831,760.20 : x
  2. Step 2: Convert to fraction form
    28,197,161.80/42,211,761.90 = 16,831,760.20/x
  3. Step 3: Cross multiply
    28,197,161.80x = 42,211,761.90 × 16,831,760.20
  4. Step 4: Simplify right side
    28,197,161.80x = 710,498,253,920,296.38
  5. Step 5: Solve for x
    x = 710,498,253,920,296.38/28,197,161.80
  6. Step 6: Final answer
    x = 25,197,509.56

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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.