Home / 12,127,581.40-18,191,663.70-3,608,195.80

Finding the Fourth Proportional to 12,127,581.40, 18,191,663.70 and 3,608,195.80

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Solution

The fourth proportional to 12,127,581.40, 18,191,663.70 and 3,608,195.80 is: 5,412,380.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,581.40 : 18,191,663.70 = 3,608,195.80 : x
  2. Step 2: Convert to fraction form
    12,127,581.40/18,191,663.70 = 3,608,195.80/x
  3. Step 3: Cross multiply
    12,127,581.40x = 18,191,663.70 × 3,608,195.80
  4. Step 4: Simplify right side
    12,127,581.40x = 65,639,084,557,352.45
  5. Step 5: Solve for x
    x = 65,639,084,557,352.45/12,127,581.40
  6. Step 6: Final answer
    x = 5,412,380.46

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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.