Home / 12,241,378.40-18,346,321.20-7,443,975.20

Finding the Fourth Proportional to 12,241,378.40, 18,346,321.20 and 7,443,975.20

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Solution

The fourth proportional to 12,241,378.40, 18,346,321.20 and 7,443,975.20 is: 11,156,387.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,241,378.40 : 18,346,321.20 = 7,443,975.20 : x
  2. Step 2: Convert to fraction form
    12,241,378.40/18,346,321.20 = 7,443,975.20/x
  3. Step 3: Cross multiply
    12,241,378.40x = 18,346,321.20 × 7,443,975.20
  4. Step 4: Simplify right side
    12,241,378.40x = 136,569,560,024,034.23
  5. Step 5: Solve for x
    x = 136,569,560,024,034.23/12,241,378.40
  6. Step 6: Final answer
    x = 11,156,387.42

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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.