Home / 639,566,672.28-959,204,977.24-289,581,697.07

Finding the Fourth Proportional to 639,566,672.28, 959,204,977.24 and 289,581,697.07

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Solution

The fourth proportional to 639,566,672.28, 959,204,977.24 and 289,581,697.07 is: 434,306,878.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    639,566,672.28 : 959,204,977.24 = 289,581,697.07 : x
  2. Step 2: Convert to fraction form
    639,566,672.28/959,204,977.24 = 289,581,697.07/x
  3. Step 3: Cross multiply
    639,566,672.28x = 959,204,977.24 × 289,581,697.07
  4. Step 4: Simplify right side
    639,566,672.28x = 277,768,205,147,149,920
  5. Step 5: Solve for x
    x = 277,768,205,147,149,920/639,566,672.28
  6. Step 6: Final answer
    x = 434,306,878.68

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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.