Home / 1,321,023,096.80-1,981,534,645.20-885,666,629.60

Finding the Fourth Proportional to 1,321,023,096.80, 1,981,534,645.20 and 885,666,629.60

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Solution

The fourth proportional to 1,321,023,096.80, 1,981,534,645.20 and 885,666,629.60 is: 1,328,499,944.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,321,023,096.80 : 1,981,534,645.20 = 885,666,629.60 : x
  2. Step 2: Convert to fraction form
    1,321,023,096.80/1,981,534,645.20 = 885,666,629.60/x
  3. Step 3: Cross multiply
    1,321,023,096.80x = 1,981,534,645.20 × 885,666,629.60
  4. Step 4: Simplify right side
    1,321,023,096.80x = 1,754,979,110,649,915,904
  5. Step 5: Solve for x
    x = 1,754,979,110,649,915,904/1,321,023,096.80
  6. Step 6: Final answer
    x = 1,328,499,944.40

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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.