Home / 418,556,758.73-627,874,248.83-123,452,166.18

Finding the Fourth Proportional to 418,556,758.73, 627,874,248.83 and 123,452,166.18

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Solution

The fourth proportional to 418,556,758.73, 627,874,248.83 and 123,452,166.18 is: 185,189,784.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,556,758.73 : 627,874,248.83 = 123,452,166.18 : x
  2. Step 2: Convert to fraction form
    418,556,758.73/627,874,248.83 = 123,452,166.18/x
  3. Step 3: Cross multiply
    418,556,758.73x = 627,874,248.83 × 123,452,166.18
  4. Step 4: Simplify right side
    418,556,758.73x = 77,512,436,103,564,464
  5. Step 5: Solve for x
    x = 77,512,436,103,564,464/418,556,758.73
  6. Step 6: Final answer
    x = 185,189,784.87

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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.