Home / 61,193,311.32-91,796,691.90-20,237,831.82

Finding the Fourth Proportional to 61,193,311.32, 91,796,691.90 and 20,237,831.82

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Solution

The fourth proportional to 61,193,311.32, 91,796,691.90 and 20,237,831.82 is: 30,358,971.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,193,311.32 : 91,796,691.90 = 20,237,831.82 : x
  2. Step 2: Convert to fraction form
    61,193,311.32/91,796,691.90 = 20,237,831.82/x
  3. Step 3: Cross multiply
    61,193,311.32x = 91,796,691.90 × 20,237,831.82
  4. Step 4: Simplify right side
    61,193,311.32x = 1,857,766,012,304,556.50
  5. Step 5: Solve for x
    x = 1,857,766,012,304,556.50/61,193,311.32
  6. Step 6: Final answer
    x = 30,358,971.79

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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.