Home / 239,589,781,129.53-359,406,764,687.37-78,242,033,524.78

Finding the Fourth Proportional to 239,589,781,129.53, 359,406,764,687.37 and 78,242,033,524.78

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Solution

The fourth proportional to 239,589,781,129.53, 359,406,764,687.37 and 78,242,033,524.78 is: 117,370,265,122.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,589,781,129.53 : 359,406,764,687.37 = 78,242,033,524.78 : x
  2. Step 2: Convert to fraction form
    239,589,781,129.53/359,406,764,687.37 = 78,242,033,524.78/x
  3. Step 3: Cross multiply
    239,589,781,129.53x = 359,406,764,687.37 × 78,242,033,524.78
  4. Step 4: Simplify right side
    239,589,781,129.53x = 28,120,716,131,700,838,498,304
  5. Step 5: Solve for x
    x = 28,120,716,131,700,838,498,304/239,589,781,129.53
  6. Step 6: Final answer
    x = 117,370,265,122.03

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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.