Home / 13,206,439.60-19,786,039.80-8,151,845.20

Finding the Fourth Proportional to 13,206,439.60, 19,786,039.80 and 8,151,845.20

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Solution

The fourth proportional to 13,206,439.60, 19,786,039.80 and 8,151,845.20 is: 12,213,188.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,206,439.60 : 19,786,039.80 = 8,151,845.20 : x
  2. Step 2: Convert to fraction form
    13,206,439.60/19,786,039.80 = 8,151,845.20/x
  3. Step 3: Cross multiply
    13,206,439.60x = 19,786,039.80 × 8,151,845.20
  4. Step 4: Simplify right side
    13,206,439.60x = 161,292,733,570,638.97
  5. Step 5: Solve for x
    x = 161,292,733,570,638.97/13,206,439.60
  6. Step 6: Final answer
    x = 12,213,188.30

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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.