Home / 78,757,054.80-117,923,005.80-61,750,942.80

Finding the Fourth Proportional to 78,757,054.80, 117,923,005.80 and 61,750,942.80

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Solution

The fourth proportional to 78,757,054.80, 117,923,005.80 and 61,750,942.80 is: 92,459,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,757,054.80 : 117,923,005.80 = 61,750,942.80 : x
  2. Step 2: Convert to fraction form
    78,757,054.80/117,923,005.80 = 61,750,942.80/x
  3. Step 3: Cross multiply
    78,757,054.80x = 117,923,005.80 × 61,750,942.80
  4. Step 4: Simplify right side
    78,757,054.80x = 7,281,856,785,959,868
  5. Step 5: Solve for x
    x = 7,281,856,785,959,868/78,757,054.80
  6. Step 6: Final answer
    x = 92,459,739.70

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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.