Home / 12,209,706.55-18,314,370.28-4,128,357.61

Finding the Fourth Proportional to 12,209,706.55, 18,314,370.28 and 4,128,357.61

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Solution

The fourth proportional to 12,209,706.55, 18,314,370.28 and 4,128,357.61 is: 6,192,472.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,209,706.55 : 18,314,370.28 = 4,128,357.61 : x
  2. Step 2: Convert to fraction form
    12,209,706.55/18,314,370.28 = 4,128,357.61/x
  3. Step 3: Cross multiply
    12,209,706.55x = 18,314,370.28 × 4,128,357.61
  4. Step 4: Simplify right side
    12,209,706.55x = 75,608,269,945,849.23
  5. Step 5: Solve for x
    x = 75,608,269,945,849.23/12,209,706.55
  6. Step 6: Final answer
    x = 6,192,472.33

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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.