Home / 649,542,260.20-974,313,390.30-442,917,999.40

Finding the Fourth Proportional to 649,542,260.20, 974,313,390.30 and 442,917,999.40

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Solution

The fourth proportional to 649,542,260.20, 974,313,390.30 and 442,917,999.40 is: 664,376,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,542,260.20 : 974,313,390.30 = 442,917,999.40 : x
  2. Step 2: Convert to fraction form
    649,542,260.20/974,313,390.30 = 442,917,999.40/x
  3. Step 3: Cross multiply
    649,542,260.20x = 974,313,390.30 × 442,917,999.40
  4. Step 4: Simplify right side
    649,542,260.20x = 431,540,937,620,307,328
  5. Step 5: Solve for x
    x = 431,540,937,620,307,328/649,542,260.20
  6. Step 6: Final answer
    x = 664,376,999.10

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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.