Home / 8,161,584.40-12,213,346.20-7,108,195.60

Finding the Fourth Proportional to 8,161,584.40, 12,213,346.20 and 7,108,195.60

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Solution

The fourth proportional to 8,161,584.40, 12,213,346.20 and 7,108,195.60 is: 10,637,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,161,584.40 : 12,213,346.20 = 7,108,195.60 : x
  2. Step 2: Convert to fraction form
    8,161,584.40/12,213,346.20 = 7,108,195.60/x
  3. Step 3: Cross multiply
    8,161,584.40x = 12,213,346.20 × 7,108,195.60
  4. Step 4: Simplify right side
    8,161,584.40x = 86,814,853,720,116.70
  5. Step 5: Solve for x
    x = 86,814,853,720,116.70/8,161,584.40
  6. Step 6: Final answer
    x = 10,637,009.86

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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.