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Finding the Fourth Proportional to 8,659,988.97, 12,992,869.27 and 2,903,291.71

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Solution

The fourth proportional to 8,659,988.97, 12,992,869.27 and 2,903,291.71 is: 4,355,905.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,659,988.97 : 12,992,869.27 = 2,903,291.71 : x
  2. Step 2: Convert to fraction form
    8,659,988.97/12,992,869.27 = 2,903,291.71/x
  3. Step 3: Cross multiply
    8,659,988.97x = 12,992,869.27 × 2,903,291.71
  4. Step 4: Simplify right side
    8,659,988.97x = 37,722,089,603,687.64
  5. Step 5: Solve for x
    x = 37,722,089,603,687.64/8,659,988.97
  6. Step 6: Final answer
    x = 4,355,905.04

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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.