Home / 146,819,887.20-220,397,792.40-86,269,730.40

Finding the Fourth Proportional to 146,819,887.20, 220,397,792.40 and 86,269,730.40

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Solution

The fourth proportional to 146,819,887.20, 220,397,792.40 and 86,269,730.40 is: 129,503,287.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,819,887.20 : 220,397,792.40 = 86,269,730.40 : x
  2. Step 2: Convert to fraction form
    146,819,887.20/220,397,792.40 = 86,269,730.40/x
  3. Step 3: Cross multiply
    146,819,887.20x = 220,397,792.40 × 86,269,730.40
  4. Step 4: Simplify right side
    146,819,887.20x = 19,013,658,131,103,172
  5. Step 5: Solve for x
    x = 19,013,658,131,103,172/146,819,887.20
  6. Step 6: Final answer
    x = 129,503,287.97

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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.