Home / 126,743,949.20-190,115,923.80-31,005,837.20

Finding the Fourth Proportional to 126,743,949.20, 190,115,923.80 and 31,005,837.20

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Solution

The fourth proportional to 126,743,949.20, 190,115,923.80 and 31,005,837.20 is: 46,508,755.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,743,949.20 : 190,115,923.80 = 31,005,837.20 : x
  2. Step 2: Convert to fraction form
    126,743,949.20/190,115,923.80 = 31,005,837.20/x
  3. Step 3: Cross multiply
    126,743,949.20x = 190,115,923.80 × 31,005,837.20
  4. Step 4: Simplify right side
    126,743,949.20x = 5,894,703,382,470,406
  5. Step 5: Solve for x
    x = 5,894,703,382,470,406/126,743,949.20
  6. Step 6: Final answer
    x = 46,508,755.80

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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.