Home / 10,487,043.10-15,703,992.60-8,361,279.10

Finding the Fourth Proportional to 10,487,043.10, 15,703,992.60 and 8,361,279.10

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Solution

The fourth proportional to 10,487,043.10, 15,703,992.60 and 8,361,279.10 is: 12,520,732.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487,043.10 : 15,703,992.60 = 8,361,279.10 : x
  2. Step 2: Convert to fraction form
    10,487,043.10/15,703,992.60 = 8,361,279.10/x
  3. Step 3: Cross multiply
    10,487,043.10x = 15,703,992.60 × 8,361,279.10
  4. Step 4: Simplify right side
    10,487,043.10x = 131,305,465,112,934.66
  5. Step 5: Solve for x
    x = 131,305,465,112,934.66/10,487,043.10
  6. Step 6: Final answer
    x = 12,520,732.86

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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.