Home / 664,271,021.70-996,406,532.55-255,340,512.90

Finding the Fourth Proportional to 664,271,021.70, 996,406,532.55 and 255,340,512.90

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Solution

The fourth proportional to 664,271,021.70, 996,406,532.55 and 255,340,512.90 is: 383,010,769.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,271,021.70 : 996,406,532.55 = 255,340,512.90 : x
  2. Step 2: Convert to fraction form
    664,271,021.70/996,406,532.55 = 255,340,512.90/x
  3. Step 3: Cross multiply
    664,271,021.70x = 996,406,532.55 × 255,340,512.90
  4. Step 4: Simplify right side
    664,271,021.70x = 254,422,955,078,227,552
  5. Step 5: Solve for x
    x = 254,422,955,078,227,552/664,271,021.70
  6. Step 6: Final answer
    x = 383,010,769.35

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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.