Home / 20,850,680.78-28,756,877.96-14,676,167.42

Finding the Fourth Proportional to 20,850,680.78, 28,756,877.96 and 14,676,167.42

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Solution

The fourth proportional to 20,850,680.78, 28,756,877.96 and 14,676,167.42 is: 20,241,101.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,850,680.78 : 28,756,877.96 = 14,676,167.42 : x
  2. Step 2: Convert to fraction form
    20,850,680.78/28,756,877.96 = 14,676,167.42/x
  3. Step 3: Cross multiply
    20,850,680.78x = 28,756,877.96 × 14,676,167.42
  4. Step 4: Simplify right side
    20,850,680.78x = 422,040,755,200,302.81
  5. Step 5: Solve for x
    x = 422,040,755,200,302.81/20,850,680.78
  6. Step 6: Final answer
    x = 20,241,101.95

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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.