Home / 47,849,452.70-71,790,767.85-20,942,419.10

Finding the Fourth Proportional to 47,849,452.70, 71,790,767.85 and 20,942,419.10

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Solution

The fourth proportional to 47,849,452.70, 71,790,767.85 and 20,942,419.10 is: 31,420,889.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,849,452.70 : 71,790,767.85 = 20,942,419.10 : x
  2. Step 2: Convert to fraction form
    47,849,452.70/71,790,767.85 = 20,942,419.10/x
  3. Step 3: Cross multiply
    47,849,452.70x = 71,790,767.85 × 20,942,419.10
  4. Step 4: Simplify right side
    47,849,452.70x = 1,503,472,347,825,506
  5. Step 5: Solve for x
    x = 1,503,472,347,825,506/47,849,452.70
  6. Step 6: Final answer
    x = 31,420,889.12

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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.