Home / 649,550,005.20-974,325,007.80-442,925,744.40

Finding the Fourth Proportional to 649,550,005.20, 974,325,007.80 and 442,925,744.40

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Solution

The fourth proportional to 649,550,005.20, 974,325,007.80 and 442,925,744.40 is: 664,388,616.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,550,005.20 : 974,325,007.80 = 442,925,744.40 : x
  2. Step 2: Convert to fraction form
    649,550,005.20/974,325,007.80 = 442,925,744.40/x
  3. Step 3: Cross multiply
    649,550,005.20x = 974,325,007.80 × 442,925,744.40
  4. Step 4: Simplify right side
    649,550,005.20x = 431,553,629,367,350,784
  5. Step 5: Solve for x
    x = 431,553,629,367,350,784/649,550,005.20
  6. Step 6: Final answer
    x = 664,388,616.60

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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.