Home / 5,418,968.76-8,128,480.22-1,375,457.78

Finding the Fourth Proportional to 5,418,968.76, 8,128,480.22 and 1,375,457.78

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Solution

The fourth proportional to 5,418,968.76, 8,128,480.22 and 1,375,457.78 is: 2,063,193.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,418,968.76 : 8,128,480.22 = 1,375,457.78 : x
  2. Step 2: Convert to fraction form
    5,418,968.76/8,128,480.22 = 1,375,457.78/x
  3. Step 3: Cross multiply
    5,418,968.76x = 8,128,480.22 × 1,375,457.78
  4. Step 4: Simplify right side
    5,418,968.76x = 11,180,381,358,175.11
  5. Step 5: Solve for x
    x = 11,180,381,358,175.11/5,418,968.76
  6. Step 6: Final answer
    x = 2,063,193.54

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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.