Home / 111,906,007.20-167,859,010.80-66,444,400.80

Finding the Fourth Proportional to 111,906,007.20, 167,859,010.80 and 66,444,400.80

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Solution

The fourth proportional to 111,906,007.20, 167,859,010.80 and 66,444,400.80 is: 99,666,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,906,007.20 : 167,859,010.80 = 66,444,400.80 : x
  2. Step 2: Convert to fraction form
    111,906,007.20/167,859,010.80 = 66,444,400.80/x
  3. Step 3: Cross multiply
    111,906,007.20x = 167,859,010.80 × 66,444,400.80
  4. Step 4: Simplify right side
    111,906,007.20x = 11,153,291,391,486,728
  5. Step 5: Solve for x
    x = 11,153,291,391,486,728/111,906,007.20
  6. Step 6: Final answer
    x = 99,666,601.20

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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.