Home / 664,271,021.20-996,406,531.80-255,340,512.40

Finding the Fourth Proportional to 664,271,021.20, 996,406,531.80 and 255,340,512.40

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Solution

The fourth proportional to 664,271,021.20, 996,406,531.80 and 255,340,512.40 is: 383,010,768.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,271,021.20 : 996,406,531.80 = 255,340,512.40 : x
  2. Step 2: Convert to fraction form
    664,271,021.20/996,406,531.80 = 255,340,512.40/x
  3. Step 3: Cross multiply
    664,271,021.20x = 996,406,531.80 × 255,340,512.40
  4. Step 4: Simplify right side
    664,271,021.20x = 254,422,954,388,518,880
  5. Step 5: Solve for x
    x = 254,422,954,388,518,880/664,271,021.20
  6. Step 6: Final answer
    x = 383,010,768.60

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1.5x scale

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.