Home / 252,319,016.88-378,476,002.14-79,795,859.76

Finding the Fourth Proportional to 252,319,016.88, 378,476,002.14 and 79,795,859.76

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Solution

The fourth proportional to 252,319,016.88, 378,476,002.14 and 79,795,859.76 is: 119,692,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,319,016.88 : 378,476,002.14 = 79,795,859.76 : x
  2. Step 2: Convert to fraction form
    252,319,016.88/378,476,002.14 = 79,795,859.76/x
  3. Step 3: Cross multiply
    252,319,016.88x = 378,476,002.14 × 79,795,859.76
  4. Step 4: Simplify right side
    252,319,016.88x = 30,200,817,989,288,900
  5. Step 5: Solve for x
    x = 30,200,817,989,288,900/252,319,016.88
  6. Step 6: Final answer
    x = 119,692,991.68

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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.