Home / 9,217,331.78-12,718,953.24-5,087,286.86

Finding the Fourth Proportional to 9,217,331.78, 12,718,953.24 and 5,087,286.86

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Solution

The fourth proportional to 9,217,331.78, 12,718,953.24 and 5,087,286.86 is: 7,019,923.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,217,331.78 : 12,718,953.24 = 5,087,286.86 : x
  2. Step 2: Convert to fraction form
    9,217,331.78/12,718,953.24 = 5,087,286.86/x
  3. Step 3: Cross multiply
    9,217,331.78x = 12,718,953.24 × 5,087,286.86
  4. Step 4: Simplify right side
    9,217,331.78x = 64,704,963,690,806.43
  5. Step 5: Solve for x
    x = 64,704,963,690,806.43/9,217,331.78
  6. Step 6: Final answer
    x = 7,019,923.47

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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.