Home / 76,801,885.70-115,202,939.40-31,363,680.20

Finding the Fourth Proportional to 76,801,885.70, 115,202,939.40 and 31,363,680.20

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Solution

The fourth proportional to 76,801,885.70, 115,202,939.40 and 31,363,680.20 is: 47,045,565.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801,885.70 : 115,202,939.40 = 31,363,680.20 : x
  2. Step 2: Convert to fraction form
    76,801,885.70/115,202,939.40 = 31,363,680.20/x
  3. Step 3: Cross multiply
    76,801,885.70x = 115,202,939.40 × 31,363,680.20
  4. Step 4: Simplify right side
    76,801,885.70x = 3,613,188,148,865,565.50
  5. Step 5: Solve for x
    x = 3,613,188,148,865,565.50/76,801,885.70
  6. Step 6: Final answer
    x = 47,045,565.56

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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.