Home / 388,039,729.20-582,059,593.80-265,595,722.80

Finding the Fourth Proportional to 388,039,729.20, 582,059,593.80 and 265,595,722.80

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Solution

The fourth proportional to 388,039,729.20, 582,059,593.80 and 265,595,722.80 is: 398,393,584.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,039,729.20 : 582,059,593.80 = 265,595,722.80 : x
  2. Step 2: Convert to fraction form
    388,039,729.20/582,059,593.80 = 265,595,722.80/x
  3. Step 3: Cross multiply
    388,039,729.20x = 582,059,593.80 × 265,595,722.80
  4. Step 4: Simplify right side
    388,039,729.20x = 154,592,538,527,985,408
  5. Step 5: Solve for x
    x = 154,592,538,527,985,408/388,039,729.20
  6. Step 6: Final answer
    x = 398,393,584.20

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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.