Home / 411,212,613.33-616,821,019.52-138,585,742.29

Finding the Fourth Proportional to 411,212,613.33, 616,821,019.52 and 138,585,742.29

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Solution

The fourth proportional to 411,212,613.33, 616,821,019.52 and 138,585,742.29 is: 207,879,321.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,212,613.33 : 616,821,019.52 = 138,585,742.29 : x
  2. Step 2: Convert to fraction form
    411,212,613.33/616,821,019.52 = 138,585,742.29/x
  3. Step 3: Cross multiply
    411,212,613.33x = 616,821,019.52 × 138,585,742.29
  4. Step 4: Simplify right side
    411,212,613.33x = 85,482,598,849,560,848
  5. Step 5: Solve for x
    x = 85,482,598,849,560,848/411,212,613.33
  6. Step 6: Final answer
    x = 207,879,321.01

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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.