Home / 491,627,842.61-678,438,502.52-268,604,734.10

Finding the Fourth Proportional to 491,627,842.61, 678,438,502.52 and 268,604,734.10

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Solution

The fourth proportional to 491,627,842.61, 678,438,502.52 and 268,604,734.10 is: 370,670,205.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,627,842.61 : 678,438,502.52 = 268,604,734.10 : x
  2. Step 2: Convert to fraction form
    491,627,842.61/678,438,502.52 = 268,604,734.10/x
  3. Step 3: Cross multiply
    491,627,842.61x = 678,438,502.52 × 268,604,734.10
  4. Step 4: Simplify right side
    491,627,842.61x = 182,231,793,567,851,584
  5. Step 5: Solve for x
    x = 182,231,793,567,851,584/491,627,842.61
  6. Step 6: Final answer
    x = 370,670,205.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.