Home / 81,384,745.71-122,072,174.57-28,865,019.63

Finding the Fourth Proportional to 81,384,745.71, 122,072,174.57 and 28,865,019.63

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Solution

The fourth proportional to 81,384,745.71, 122,072,174.57 and 28,865,019.63 is: 43,295,775.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,384,745.71 : 122,072,174.57 = 28,865,019.63 : x
  2. Step 2: Convert to fraction form
    81,384,745.71/122,072,174.57 = 28,865,019.63/x
  3. Step 3: Cross multiply
    81,384,745.71x = 122,072,174.57 × 28,865,019.63
  4. Step 4: Simplify right side
    81,384,745.71x = 3,523,615,715,095,511.50
  5. Step 5: Solve for x
    x = 3,523,615,715,095,511.50/81,384,745.71
  6. Step 6: Final answer
    x = 43,295,775.94

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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.