Home / 738,213,039.20-1,107,744,711.60-278,481,144.80

Finding the Fourth Proportional to 738,213,039.20, 1,107,744,711.60 and 278,481,144.80

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Solution

The fourth proportional to 738,213,039.20, 1,107,744,711.60 and 278,481,144.80 is: 417,882,100.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,213,039.20 : 1,107,744,711.60 = 278,481,144.80 : x
  2. Step 2: Convert to fraction form
    738,213,039.20/1,107,744,711.60 = 278,481,144.80/x
  3. Step 3: Cross multiply
    738,213,039.20x = 1,107,744,711.60 × 278,481,144.80
  4. Step 4: Simplify right side
    738,213,039.20x = 308,486,015,432,513,856
  5. Step 5: Solve for x
    x = 308,486,015,432,513,856/738,213,039.20
  6. Step 6: Final answer
    x = 417,882,100.49

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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.