Home / 215,669,179.97-323,174,551.23-128,058,166.37

Finding the Fourth Proportional to 215,669,179.97, 323,174,551.23 and 128,058,166.37

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Solution

The fourth proportional to 215,669,179.97, 323,174,551.23 and 128,058,166.37 is: 191,891,768.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,669,179.97 : 323,174,551.23 = 128,058,166.37 : x
  2. Step 2: Convert to fraction form
    215,669,179.97/323,174,551.23 = 128,058,166.37/x
  3. Step 3: Cross multiply
    215,669,179.97x = 323,174,551.23 × 128,058,166.37
  4. Step 4: Simplify right side
    215,669,179.97x = 41,385,140,446,345,560
  5. Step 5: Solve for x
    x = 41,385,140,446,345,560/215,669,179.97
  6. Step 6: Final answer
    x = 191,891,768.93

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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.