Home / 491,445,705.64-678,190,608.92-268,427,340.88

Finding the Fourth Proportional to 491,445,705.64, 678,190,608.92 and 268,427,340.88

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Solution

The fourth proportional to 491,445,705.64, 678,190,608.92 and 268,427,340.88 is: 370,427,291.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,445,705.64 : 678,190,608.92 = 268,427,340.88 : x
  2. Step 2: Convert to fraction form
    491,445,705.64/678,190,608.92 = 268,427,340.88/x
  3. Step 3: Cross multiply
    491,445,705.64x = 678,190,608.92 × 268,427,340.88
  4. Step 4: Simplify right side
    491,445,705.64x = 182,044,901,762,183,584
  5. Step 5: Solve for x
    x = 182,044,901,762,183,584/491,445,705.64
  6. Step 6: Final answer
    x = 370,427,291.71

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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.