Home / 1,087,466,315.20-1,628,512,087.20-721,981,873.60

Finding the Fourth Proportional to 1,087,466,315.20, 1,628,512,087.20 and 721,981,873.60

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Solution

The fourth proportional to 1,087,466,315.20, 1,628,512,087.20 and 721,981,873.60 is: 1,081,188,623.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,466,315.20 : 1,628,512,087.20 = 721,981,873.60 : x
  2. Step 2: Convert to fraction form
    1,087,466,315.20/1,628,512,087.20 = 721,981,873.60/x
  3. Step 3: Cross multiply
    1,087,466,315.20x = 1,628,512,087.20 × 721,981,873.60
  4. Step 4: Simplify right side
    1,087,466,315.20x = 1,175,756,207,896,902,656
  5. Step 5: Solve for x
    x = 1,175,756,207,896,902,656/1,087,466,315.20
  6. Step 6: Final answer
    x = 1,081,188,623.01

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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.