Home / 253,313,945.61-379,999,261.94-80,750,722.65

Finding the Fourth Proportional to 253,313,945.61, 379,999,261.94 and 80,750,722.65

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Solution

The fourth proportional to 253,313,945.61, 379,999,261.94 and 80,750,722.65 is: 121,135,119.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,313,945.61 : 379,999,261.94 = 80,750,722.65 : x
  2. Step 2: Convert to fraction form
    253,313,945.61/379,999,261.94 = 80,750,722.65/x
  3. Step 3: Cross multiply
    253,313,945.61x = 379,999,261.94 × 80,750,722.65
  4. Step 4: Simplify right side
    253,313,945.61x = 30,685,215,008,658,104
  5. Step 5: Solve for x
    x = 30,685,215,008,658,104/253,313,945.61
  6. Step 6: Final answer
    x = 121,135,119.25

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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.