Home / 13,799,142.40-20,736,038.40-12,156,851.20

Finding the Fourth Proportional to 13,799,142.40, 20,736,038.40 and 12,156,851.20

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Solution

The fourth proportional to 13,799,142.40, 20,736,038.40 and 12,156,851.20 is: 18,268,159.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,799,142.40 : 20,736,038.40 = 12,156,851.20 : x
  2. Step 2: Convert to fraction form
    13,799,142.40/20,736,038.40 = 12,156,851.20/x
  3. Step 3: Cross multiply
    13,799,142.40x = 20,736,038.40 × 12,156,851.20
  4. Step 4: Simplify right side
    13,799,142.40x = 252,084,933,306,286.03
  5. Step 5: Solve for x
    x = 252,084,933,306,286.03/13,799,142.40
  6. Step 6: Final answer
    x = 18,268,159.43

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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.