Home / 20,295,702.20-28,012,137.96-12,040,346.72

Finding the Fourth Proportional to 20,295,702.20, 28,012,137.96 and 12,040,346.72

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Solution

The fourth proportional to 20,295,702.20, 28,012,137.96 and 12,040,346.72 is: 16,618,092.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,295,702.20 : 28,012,137.96 = 12,040,346.72 : x
  2. Step 2: Convert to fraction form
    20,295,702.20/28,012,137.96 = 12,040,346.72/x
  3. Step 3: Cross multiply
    20,295,702.20x = 28,012,137.96 × 12,040,346.72
  4. Step 4: Simplify right side
    20,295,702.20x = 337,275,853,406,873.50
  5. Step 5: Solve for x
    x = 337,275,853,406,873.50/20,295,702.20
  6. Step 6: Final answer
    x = 16,618,092.35

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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.