Home / 858,448,989.20-1,287,767,962.20-276,084,131.60

Finding the Fourth Proportional to 858,448,989.20, 1,287,767,962.20 and 276,084,131.60

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Solution

The fourth proportional to 858,448,989.20, 1,287,767,962.20 and 276,084,131.60 is: 414,156,582.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    858,448,989.20 : 1,287,767,962.20 = 276,084,131.60 : x
  2. Step 2: Convert to fraction form
    858,448,989.20/1,287,767,962.20 = 276,084,131.60/x
  3. Step 3: Cross multiply
    858,448,989.20x = 1,287,767,962.20 × 276,084,131.60
  4. Step 4: Simplify right side
    858,448,989.20x = 355,532,299,546,288,640
  5. Step 5: Solve for x
    x = 355,532,299,546,288,640/858,448,989.20
  6. Step 6: Final answer
    x = 414,156,582.42

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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.