Home / 491,445,701.64-678,190,603.40-268,427,336.86

Finding the Fourth Proportional to 491,445,701.64, 678,190,603.40 and 268,427,336.86

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Solution

The fourth proportional to 491,445,701.64, 678,190,603.40 and 268,427,336.86 is: 370,427,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    491,445,701.64 : 678,190,603.40 = 268,427,336.86 : x
  2. Step 2: Convert to fraction form
    491,445,701.64/678,190,603.40 = 268,427,336.86/x
  3. Step 3: Cross multiply
    491,445,701.64x = 678,190,603.40 × 268,427,336.86
  4. Step 4: Simplify right side
    491,445,701.64x = 182,044,897,554,138,464
  5. Step 5: Solve for x
    x = 182,044,897,554,138,464/491,445,701.64
  6. Step 6: Final answer
    x = 370,427,286.16

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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.