Home / 127,991,028.80-191,986,543.20-102,481,860.80

Finding the Fourth Proportional to 127,991,028.80, 191,986,543.20 and 102,481,860.80

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Solution

The fourth proportional to 127,991,028.80, 191,986,543.20 and 102,481,860.80 is: 153,722,791.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,991,028.80 : 191,986,543.20 = 102,481,860.80 : x
  2. Step 2: Convert to fraction form
    127,991,028.80/191,986,543.20 = 102,481,860.80/x
  3. Step 3: Cross multiply
    127,991,028.80x = 191,986,543.20 × 102,481,860.80
  4. Step 4: Simplify right side
    127,991,028.80x = 19,675,138,195,695,584
  5. Step 5: Solve for x
    x = 19,675,138,195,695,584/127,991,028.80
  6. Step 6: Final answer
    x = 153,722,791.20

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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.