Home / 21,872,219.17-30,184,579.52-12,579,791.83

Finding the Fourth Proportional to 21,872,219.17, 30,184,579.52 and 12,579,791.83

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Solution

The fourth proportional to 21,872,219.17, 30,184,579.52 and 12,579,791.83 is: 17,360,640.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,872,219.17 : 30,184,579.52 = 12,579,791.83 : x
  2. Step 2: Convert to fraction form
    21,872,219.17/30,184,579.52 = 12,579,791.83/x
  3. Step 3: Cross multiply
    21,872,219.17x = 30,184,579.52 × 12,579,791.83
  4. Step 4: Simplify right side
    21,872,219.17x = 379,715,726,859,687.31
  5. Step 5: Solve for x
    x = 379,715,726,859,687.31/21,872,219.17
  6. Step 6: Final answer
    x = 17,360,640.17

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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.