Home / 253,218,047.96-379,819,986.05-80,705,213.48

Finding the Fourth Proportional to 253,218,047.96, 379,819,986.05 and 80,705,213.48

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Solution

The fourth proportional to 253,218,047.96, 379,819,986.05 and 80,705,213.48 is: 121,055,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,218,047.96 : 379,819,986.05 = 80,705,213.48 : x
  2. Step 2: Convert to fraction form
    253,218,047.96/379,819,986.05 = 80,705,213.48/x
  3. Step 3: Cross multiply
    253,218,047.96x = 379,819,986.05 × 80,705,213.48
  4. Step 4: Simplify right side
    253,218,047.96x = 30,653,453,055,833,244
  5. Step 5: Solve for x
    x = 30,653,453,055,833,244/253,218,047.96
  6. Step 6: Final answer
    x = 121,055,561.81

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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.