Home / 78,146,361.59-117,236,469.78-23,554,380.11

Finding the Fourth Proportional to 78,146,361.59, 117,236,469.78 and 23,554,380.11

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Solution

The fourth proportional to 78,146,361.59, 117,236,469.78 and 23,554,380.11 is: 35,336,672.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,146,361.59 : 117,236,469.78 = 23,554,380.11 : x
  2. Step 2: Convert to fraction form
    78,146,361.59/117,236,469.78 = 23,554,380.11/x
  3. Step 3: Cross multiply
    78,146,361.59x = 117,236,469.78 × 23,554,380.11
  4. Step 4: Simplify right side
    78,146,361.59x = 2,761,432,371,366,466
  5. Step 5: Solve for x
    x = 2,761,432,371,366,466/78,146,361.59
  6. Step 6: Final answer
    x = 35,336,672.31

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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.