Home / 20,785,035.11-28,681,326.05-11,491,332.44

Finding the Fourth Proportional to 20,785,035.11, 28,681,326.05 and 11,491,332.44

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Solution

The fourth proportional to 20,785,035.11, 28,681,326.05 and 11,491,332.44 is: 15,856,920.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,785,035.11 : 28,681,326.05 = 11,491,332.44 : x
  2. Step 2: Convert to fraction form
    20,785,035.11/28,681,326.05 = 11,491,332.44/x
  3. Step 3: Cross multiply
    20,785,035.11x = 28,681,326.05 × 11,491,332.44
  4. Step 4: Simplify right side
    20,785,035.11x = 329,586,652,259,718.81
  5. Step 5: Solve for x
    x = 329,586,652,259,718.81/20,785,035.11
  6. Step 6: Final answer
    x = 15,856,920.64

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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.