Home / 78,236,815.14-117,307,393.02-37,308,772.26

Finding the Fourth Proportional to 78,236,815.14, 117,307,393.02 and 37,308,772.26

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Solution

The fourth proportional to 78,236,815.14, 117,307,393.02 and 37,308,772.26 is: 55,940,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,236,815.14 : 117,307,393.02 = 37,308,772.26 : x
  2. Step 2: Convert to fraction form
    78,236,815.14/117,307,393.02 = 37,308,772.26/x
  3. Step 3: Cross multiply
    78,236,815.14x = 117,307,393.02 × 37,308,772.26
  4. Step 4: Simplify right side
    78,236,815.14x = 4,376,594,810,597,493
  5. Step 5: Solve for x
    x = 4,376,594,810,597,493/78,236,815.14
  6. Step 6: Final answer
    x = 55,940,349.86

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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.