Home / 1,085,987,449.80-1,628,981,174.70-395,917,216.20

Finding the Fourth Proportional to 1,085,987,449.80, 1,628,981,174.70 and 395,917,216.20

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Solution

The fourth proportional to 1,085,987,449.80, 1,628,981,174.70 and 395,917,216.20 is: 593,875,824.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,085,987,449.80 : 1,628,981,174.70 = 395,917,216.20 : x
  2. Step 2: Convert to fraction form
    1,085,987,449.80/1,628,981,174.70 = 395,917,216.20/x
  3. Step 3: Cross multiply
    1,085,987,449.80x = 1,628,981,174.70 × 395,917,216.20
  4. Step 4: Simplify right side
    1,085,987,449.80x = 644,941,691,929,429,888
  5. Step 5: Solve for x
    x = 644,941,691,929,429,888/1,085,987,449.80
  6. Step 6: Final answer
    x = 593,875,824.30

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Double scale
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Similar ratio
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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.