Home / 13,150,414.12-18,144,560.48-7,851,077.68

Finding the Fourth Proportional to 13,150,414.12, 18,144,560.48 and 7,851,077.68

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Solution

The fourth proportional to 13,150,414.12, 18,144,560.48 and 7,851,077.68 is: 10,832,689.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,150,414.12 : 18,144,560.48 = 7,851,077.68 : x
  2. Step 2: Convert to fraction form
    13,150,414.12/18,144,560.48 = 7,851,077.68/x
  3. Step 3: Cross multiply
    13,150,414.12x = 18,144,560.48 × 7,851,077.68
  4. Step 4: Simplify right side
    13,150,414.12x = 142,454,353,797,938.09
  5. Step 5: Solve for x
    x = 142,454,353,797,938.09/13,150,414.12
  6. Step 6: Final answer
    x = 10,832,689.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.