Home / 327,888,916.80-491,833,375.20-85,551,820.80

Finding the Fourth Proportional to 327,888,916.80, 491,833,375.20 and 85,551,820.80

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Solution

The fourth proportional to 327,888,916.80, 491,833,375.20 and 85,551,820.80 is: 128,327,731.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,888,916.80 : 491,833,375.20 = 85,551,820.80 : x
  2. Step 2: Convert to fraction form
    327,888,916.80/491,833,375.20 = 85,551,820.80/x
  3. Step 3: Cross multiply
    327,888,916.80x = 491,833,375.20 × 85,551,820.80
  4. Step 4: Simplify right side
    327,888,916.80x = 42,077,240,778,569,560
  5. Step 5: Solve for x
    x = 42,077,240,778,569,560/327,888,916.80
  6. Step 6: Final answer
    x = 128,327,731.20

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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.