Home / 1,188,892,986.40-1,783,339,479.60-499,295,144.80

Finding the Fourth Proportional to 1,188,892,986.40, 1,783,339,479.60 and 499,295,144.80

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Solution

The fourth proportional to 1,188,892,986.40, 1,783,339,479.60 and 499,295,144.80 is: 748,942,717.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,188,892,986.40 : 1,783,339,479.60 = 499,295,144.80 : x
  2. Step 2: Convert to fraction form
    1,188,892,986.40/1,783,339,479.60 = 499,295,144.80/x
  3. Step 3: Cross multiply
    1,188,892,986.40x = 1,783,339,479.60 × 499,295,144.80
  4. Step 4: Simplify right side
    1,188,892,986.40x = 890,412,743,694,438,656
  5. Step 5: Solve for x
    x = 890,412,743,694,438,656/1,188,892,986.40
  6. Step 6: Final answer
    x = 748,942,717.20

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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.