Home / 168,151,738.90-252,227,608.35-77,275,327.90

Finding the Fourth Proportional to 168,151,738.90, 252,227,608.35 and 77,275,327.90

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Solution

The fourth proportional to 168,151,738.90, 252,227,608.35 and 77,275,327.90 is: 115,912,991.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,151,738.90 : 252,227,608.35 = 77,275,327.90 : x
  2. Step 2: Convert to fraction form
    168,151,738.90/252,227,608.35 = 77,275,327.90/x
  3. Step 3: Cross multiply
    168,151,738.90x = 252,227,608.35 × 77,275,327.90
  4. Step 4: Simplify right side
    168,151,738.90x = 19,490,971,140,679,028
  5. Step 5: Solve for x
    x = 19,490,971,140,679,028/168,151,738.90
  6. Step 6: Final answer
    x = 115,912,991.85

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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.