Home / 161,758,768.80-242,638,153.20-71,059,504.80

Finding the Fourth Proportional to 161,758,768.80, 242,638,153.20 and 71,059,504.80

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Solution

The fourth proportional to 161,758,768.80, 242,638,153.20 and 71,059,504.80 is: 106,589,257.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,758,768.80 : 242,638,153.20 = 71,059,504.80 : x
  2. Step 2: Convert to fraction form
    161,758,768.80/242,638,153.20 = 71,059,504.80/x
  3. Step 3: Cross multiply
    161,758,768.80x = 242,638,153.20 × 71,059,504.80
  4. Step 4: Simplify right side
    161,758,768.80x = 17,241,747,011,978,534
  5. Step 5: Solve for x
    x = 17,241,747,011,978,534/161,758,768.80
  6. Step 6: Final answer
    x = 106,589,257.20

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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.