Home / 411,212,619.33-616,821,028.52-138,585,748.29

Finding the Fourth Proportional to 411,212,619.33, 616,821,028.52 and 138,585,748.29

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Solution

The fourth proportional to 411,212,619.33, 616,821,028.52 and 138,585,748.29 is: 207,879,330.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,212,619.33 : 616,821,028.52 = 138,585,748.29 : x
  2. Step 2: Convert to fraction form
    411,212,619.33/616,821,028.52 = 138,585,748.29/x
  3. Step 3: Cross multiply
    411,212,619.33x = 616,821,028.52 × 138,585,748.29
  4. Step 4: Simplify right side
    411,212,619.33x = 85,482,603,797,758,688
  5. Step 5: Solve for x
    x = 85,482,603,797,758,688/411,212,619.33
  6. Step 6: Final answer
    x = 207,879,330.01

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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.