Home / 78,397,246.26-117,611,566.56-43,902,702.54

Finding the Fourth Proportional to 78,397,246.26, 117,611,566.56 and 43,902,702.54

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Solution

The fourth proportional to 78,397,246.26, 117,611,566.56 and 43,902,702.54 is: 65,862,844.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,397,246.26 : 117,611,566.56 = 43,902,702.54 : x
  2. Step 2: Convert to fraction form
    78,397,246.26/117,611,566.56 = 43,902,702.54/x
  3. Step 3: Cross multiply
    78,397,246.26x = 117,611,566.56 × 43,902,702.54
  4. Step 4: Simplify right side
    78,397,246.26x = 5,163,465,621,947,091
  5. Step 5: Solve for x
    x = 5,163,465,621,947,091/78,397,246.26
  6. Step 6: Final answer
    x = 65,862,844.27

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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.