Home / 217,837,221.78-300,626,024.04-122,497,736.31

Finding the Fourth Proportional to 217,837,221.78, 300,626,024.04 and 122,497,736.31

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Solution

The fourth proportional to 217,837,221.78, 300,626,024.04 and 122,497,736.31 is: 169,052,869.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,837,221.78 : 300,626,024.04 = 122,497,736.31 : x
  2. Step 2: Convert to fraction form
    217,837,221.78/300,626,024.04 = 122,497,736.31/x
  3. Step 3: Cross multiply
    217,837,221.78x = 300,626,024.04 × 122,497,736.31
  4. Step 4: Simplify right side
    217,837,221.78x = 36,826,007,420,775,648
  5. Step 5: Solve for x
    x = 36,826,007,420,775,648/217,837,221.78
  6. Step 6: Final answer
    x = 169,052,869.48

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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.