Home / 10,487,029.10-15,703,971.60-8,361,265.10

Finding the Fourth Proportional to 10,487,029.10, 15,703,971.60 and 8,361,265.10

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Solution

The fourth proportional to 10,487,029.10, 15,703,971.60 and 8,361,265.10 is: 12,520,711.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,487,029.10 : 15,703,971.60 = 8,361,265.10 : x
  2. Step 2: Convert to fraction form
    10,487,029.10/15,703,971.60 = 8,361,265.10/x
  3. Step 3: Cross multiply
    10,487,029.10x = 15,703,971.60 × 8,361,265.10
  4. Step 4: Simplify right side
    10,487,029.10x = 131,305,069,670,471.16
  5. Step 5: Solve for x
    x = 131,305,069,670,471.16/10,487,029.10
  6. Step 6: Final answer
    x = 12,520,711.86

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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.