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Finding the Fourth Proportional to 8,639,502.65, 12,959,998.16 and 2,249,766.62

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Solution

The fourth proportional to 8,639,502.65, 12,959,998.16 and 2,249,766.62 is: 3,374,843.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,639,502.65 : 12,959,998.16 = 2,249,766.62 : x
  2. Step 2: Convert to fraction form
    8,639,502.65/12,959,998.16 = 2,249,766.62/x
  3. Step 3: Cross multiply
    8,639,502.65x = 12,959,998.16 × 2,249,766.62
  4. Step 4: Simplify right side
    8,639,502.65x = 29,156,971,179,580.60
  5. Step 5: Solve for x
    x = 29,156,971,179,580.60/8,639,502.65
  6. Step 6: Final answer
    x = 3,374,843.71

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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.