Home / 491,683,278.60-738,049,966.92-211,702,889.88

Finding the Fourth Proportional to 491,683,278.60, 738,049,966.92 and 211,702,889.88

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Solution

The fourth proportional to 491,683,278.60, 738,049,966.92 and 211,702,889.88 is: 317,780,403.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,683,278.60 : 738,049,966.92 = 211,702,889.88 : x
  2. Step 2: Convert to fraction form
    491,683,278.60/738,049,966.92 = 211,702,889.88/x
  3. Step 3: Cross multiply
    491,683,278.60x = 738,049,966.92 × 211,702,889.88
  4. Step 4: Simplify right side
    491,683,278.60x = 156,247,310,872,802,400
  5. Step 5: Solve for x
    x = 156,247,310,872,802,400/491,683,278.60
  6. Step 6: Final answer
    x = 317,780,403.92

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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.