Home / 72,551,578.10-108,719,749.28-53,288,170.45

Finding the Fourth Proportional to 72,551,578.10, 108,719,749.28 and 53,288,170.45

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Solution

The fourth proportional to 72,551,578.10, 108,719,749.28 and 53,288,170.45 is: 79,853,211.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,551,578.10 : 108,719,749.28 = 53,288,170.45 : x
  2. Step 2: Convert to fraction form
    72,551,578.10/108,719,749.28 = 53,288,170.45/x
  3. Step 3: Cross multiply
    72,551,578.10x = 108,719,749.28 × 53,288,170.45
  4. Step 4: Simplify right side
    72,551,578.10x = 5,793,476,530,475,846
  5. Step 5: Solve for x
    x = 5,793,476,530,475,846/72,551,578.10
  6. Step 6: Final answer
    x = 79,853,211.78

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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.