Home / 12,378,180.70-18,567,500.28-4,291,419.88

Finding the Fourth Proportional to 12,378,180.70, 18,567,500.28 and 4,291,419.88

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Solution

The fourth proportional to 12,378,180.70, 18,567,500.28 and 4,291,419.88 is: 6,437,209.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,378,180.70 : 18,567,500.28 = 4,291,419.88 : x
  2. Step 2: Convert to fraction form
    12,378,180.70/18,567,500.28 = 4,291,419.88/x
  3. Step 3: Cross multiply
    12,378,180.70x = 18,567,500.28 × 4,291,419.88
  4. Step 4: Simplify right side
    12,378,180.70x = 79,680,939,823,497.56
  5. Step 5: Solve for x
    x = 79,680,939,823,497.56/12,378,180.70
  6. Step 6: Final answer
    x = 6,437,209.29

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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.