Home / 12,127,966.40-18,192,241.20-3,608,580.80

Finding the Fourth Proportional to 12,127,966.40, 18,192,241.20 and 3,608,580.80

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Solution

The fourth proportional to 12,127,966.40, 18,192,241.20 and 3,608,580.80 is: 5,412,957.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,127,966.40 : 18,192,241.20 = 3,608,580.80 : x
  2. Step 2: Convert to fraction form
    12,127,966.40/18,192,241.20 = 3,608,580.80/x
  3. Step 3: Cross multiply
    12,127,966.40x = 18,192,241.20 × 3,608,580.80
  4. Step 4: Simplify right side
    12,127,966.40x = 65,648,172,303,288.95
  5. Step 5: Solve for x
    x = 65,648,172,303,288.95/12,127,966.40
  6. Step 6: Final answer
    x = 5,412,957.96

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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.