Home / 76,801,892.12-115,202,949.06-31,363,686.62

Finding the Fourth Proportional to 76,801,892.12, 115,202,949.06 and 31,363,686.62

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Solution

The fourth proportional to 76,801,892.12, 115,202,949.06 and 31,363,686.62 is: 47,045,575.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,801,892.12 : 115,202,949.06 = 31,363,686.62 : x
  2. Step 2: Convert to fraction form
    76,801,892.12/115,202,949.06 = 31,363,686.62/x
  3. Step 3: Cross multiply
    76,801,892.12x = 115,202,949.06 × 31,363,686.62
  4. Step 4: Simplify right side
    76,801,892.12x = 3,613,189,191,441,648.50
  5. Step 5: Solve for x
    x = 3,613,189,191,441,648.50/76,801,892.12
  6. Step 6: Final answer
    x = 47,045,575.21

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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.