Home / 1,087,466,324.70-1,628,512,101.45-721,981,883.10

Finding the Fourth Proportional to 1,087,466,324.70, 1,628,512,101.45 and 721,981,883.10

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Solution

The fourth proportional to 1,087,466,324.70, 1,628,512,101.45 and 721,981,883.10 is: 1,081,188,637.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,087,466,324.70 : 1,628,512,101.45 = 721,981,883.10 : x
  2. Step 2: Convert to fraction form
    1,087,466,324.70/1,628,512,101.45 = 721,981,883.10/x
  3. Step 3: Cross multiply
    1,087,466,324.70x = 1,628,512,101.45 × 721,981,883.10
  4. Step 4: Simplify right side
    1,087,466,324.70x = 1,175,756,233,656,009,216
  5. Step 5: Solve for x
    x = 1,175,756,233,656,009,216/1,087,466,324.70
  6. Step 6: Final answer
    x = 1,081,188,637.25

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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.