Home / 649,549,990.20-974,324,985.30-442,925,729.40

Finding the Fourth Proportional to 649,549,990.20, 974,324,985.30 and 442,925,729.40

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Solution

The fourth proportional to 649,549,990.20, 974,324,985.30 and 442,925,729.40 is: 664,388,594.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,549,990.20 : 974,324,985.30 = 442,925,729.40 : x
  2. Step 2: Convert to fraction form
    649,549,990.20/974,324,985.30 = 442,925,729.40/x
  3. Step 3: Cross multiply
    649,549,990.20x = 974,324,985.30 × 442,925,729.40
  4. Step 4: Simplify right side
    649,549,990.20x = 431,553,604,786,646,720
  5. Step 5: Solve for x
    x = 431,553,604,786,646,720/649,549,990.20
  6. Step 6: Final answer
    x = 664,388,594.10

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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.