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Finding the Fourth Proportional to 14,970,856.15, 20,659,905.03 and 8,265,404.80

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Solution

The fourth proportional to 14,970,856.15, 20,659,905.03 and 8,265,404.80 is: 11,406,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,970,856.15 : 20,659,905.03 = 8,265,404.80 : x
  2. Step 2: Convert to fraction form
    14,970,856.15/20,659,905.03 = 8,265,404.80/x
  3. Step 3: Cross multiply
    14,970,856.15x = 20,659,905.03 × 8,265,404.80
  4. Step 4: Simplify right side
    14,970,856.15x = 170,762,478,202,506.16
  5. Step 5: Solve for x
    x = 170,762,478,202,506.16/14,970,856.15
  6. Step 6: Final answer
    x = 11,406,326.83

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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.