Home / 13,310,113.28-18,367,956.34-7,198,541.78

Finding the Fourth Proportional to 13,310,113.28, 18,367,956.34 and 7,198,541.78

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Solution

The fourth proportional to 13,310,113.28, 18,367,956.34 and 7,198,541.78 is: 9,933,987.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,310,113.28 : 18,367,956.34 = 7,198,541.78 : x
  2. Step 2: Convert to fraction form
    13,310,113.28/18,367,956.34 = 7,198,541.78/x
  3. Step 3: Cross multiply
    13,310,113.28x = 18,367,956.34 × 7,198,541.78
  4. Step 4: Simplify right side
    13,310,113.28x = 132,222,501,126,705.89
  5. Step 5: Solve for x
    x = 132,222,501,126,705.89/13,310,113.28
  6. Step 6: Final answer
    x = 9,933,987.66

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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.