Home / 20,682,142.40-31,023,213.60-13,746,837.36

Finding the Fourth Proportional to 20,682,142.40, 31,023,213.60 and 13,746,837.36

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Solution

The fourth proportional to 20,682,142.40, 31,023,213.60 and 13,746,837.36 is: 20,620,256.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,682,142.40 : 31,023,213.60 = 13,746,837.36 : x
  2. Step 2: Convert to fraction form
    20,682,142.40/31,023,213.60 = 13,746,837.36/x
  3. Step 3: Cross multiply
    20,682,142.40x = 31,023,213.60 × 13,746,837.36
  4. Step 4: Simplify right side
    20,682,142.40x = 426,471,071,743,740.12
  5. Step 5: Solve for x
    x = 426,471,071,743,740.12/20,682,142.40
  6. Step 6: Final answer
    x = 20,620,256.04

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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.