Home / 21,248,517.20-31,872,775.80-16,996,989.20

Finding the Fourth Proportional to 21,248,517.20, 31,872,775.80 and 16,996,989.20

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Solution

The fourth proportional to 21,248,517.20, 31,872,775.80 and 16,996,989.20 is: 25,495,483.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,517.20 : 31,872,775.80 = 16,996,989.20 : x
  2. Step 2: Convert to fraction form
    21,248,517.20/31,872,775.80 = 16,996,989.20/x
  3. Step 3: Cross multiply
    21,248,517.20x = 31,872,775.80 × 16,996,989.20
  4. Step 4: Simplify right side
    21,248,517.20x = 541,741,226,046,621.38
  5. Step 5: Solve for x
    x = 541,741,226,046,621.38/21,248,517.20
  6. Step 6: Final answer
    x = 25,495,483.80

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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.