Home / 212,631,840.67-293,430,891.96-123,341,843.33

Finding the Fourth Proportional to 212,631,840.67, 293,430,891.96 and 123,341,843.33

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Solution

The fourth proportional to 212,631,840.67, 293,430,891.96 and 123,341,843.33 is: 170,211,135.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,631,840.67 : 293,430,891.96 = 123,341,843.33 : x
  2. Step 2: Convert to fraction form
    212,631,840.67/293,430,891.96 = 123,341,843.33/x
  3. Step 3: Cross multiply
    212,631,840.67x = 293,430,891.96 × 123,341,843.33
  4. Step 4: Simplify right side
    212,631,840.67x = 36,192,307,102,845,320
  5. Step 5: Solve for x
    x = 36,192,307,102,845,320/212,631,840.67
  6. Step 6: Final answer
    x = 170,211,135.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.