Home / 12,278,489.40-18,382,304.70-10,861,313.40

Finding the Fourth Proportional to 12,278,489.40, 18,382,304.70 and 10,861,313.40

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Solution

The fourth proportional to 12,278,489.40, 18,382,304.70 and 10,861,313.40 is: 16,260,629.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,278,489.40 : 18,382,304.70 = 10,861,313.40 : x
  2. Step 2: Convert to fraction form
    12,278,489.40/18,382,304.70 = 10,861,313.40/x
  3. Step 3: Cross multiply
    12,278,489.40x = 18,382,304.70 × 10,861,313.40
  4. Step 4: Simplify right side
    12,278,489.40x = 199,655,972,360,992.97
  5. Step 5: Solve for x
    x = 199,655,972,360,992.97/12,278,489.40
  6. Step 6: Final answer
    x = 16,260,629.94

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1.5x scale

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.