Home / 7,981,401.60-11,972,102.40-4,790,131.20

Finding the Fourth Proportional to 7,981,401.60, 11,972,102.40 and 4,790,131.20

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Solution

The fourth proportional to 7,981,401.60, 11,972,102.40 and 4,790,131.20 is: 7,185,196.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,981,401.60 : 11,972,102.40 = 4,790,131.20 : x
  2. Step 2: Convert to fraction form
    7,981,401.60/11,972,102.40 = 4,790,131.20/x
  3. Step 3: Cross multiply
    7,981,401.60x = 11,972,102.40 × 4,790,131.20
  4. Step 4: Simplify right side
    7,981,401.60x = 57,347,941,235,834.88
  5. Step 5: Solve for x
    x = 57,347,941,235,834.88/7,981,401.60
  6. Step 6: Final answer
    x = 7,185,196.80

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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.