Home / 418,182,059.61-627,344,552.54-172,404,339.84

Finding the Fourth Proportional to 418,182,059.61, 627,344,552.54 and 172,404,339.84

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Solution

The fourth proportional to 418,182,059.61, 627,344,552.54 and 172,404,339.84 is: 258,635,971.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,182,059.61 : 627,344,552.54 = 172,404,339.84 : x
  2. Step 2: Convert to fraction form
    418,182,059.61/627,344,552.54 = 172,404,339.84/x
  3. Step 3: Cross multiply
    418,182,059.61x = 627,344,552.54 × 172,404,339.84
  4. Step 4: Simplify right side
    418,182,059.61x = 108,156,923,432,878,896
  5. Step 5: Solve for x
    x = 108,156,923,432,878,896/418,182,059.61
  6. Step 6: Final answer
    x = 258,635,971.93

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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.