Home / 5,429,278.40-8,144,839.20-1,642,731.20

Finding the Fourth Proportional to 5,429,278.40, 8,144,839.20 and 1,642,731.20

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Solution

The fourth proportional to 5,429,278.40, 8,144,839.20 and 1,642,731.20 is: 2,464,375.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,429,278.40 : 8,144,839.20 = 1,642,731.20 : x
  2. Step 2: Convert to fraction form
    5,429,278.40/8,144,839.20 = 1,642,731.20/x
  3. Step 3: Cross multiply
    5,429,278.40x = 8,144,839.20 × 1,642,731.20
  4. Step 4: Simplify right side
    5,429,278.40x = 13,379,781,472,823.04
  5. Step 5: Solve for x
    x = 13,379,781,472,823.04/5,429,278.40
  6. Step 6: Final answer
    x = 2,464,375.65

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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.