Home / 21,212,380.85-31,820,404.10-5,859,665.15

Finding the Fourth Proportional to 21,212,380.85, 31,820,404.10 and 5,859,665.15

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Solution

The fourth proportional to 21,212,380.85, 31,820,404.10 and 5,859,665.15 is: 8,790,004.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,380.85 : 31,820,404.10 = 5,859,665.15 : x
  2. Step 2: Convert to fraction form
    21,212,380.85/31,820,404.10 = 5,859,665.15/x
  3. Step 3: Cross multiply
    21,212,380.85x = 31,820,404.10 × 5,859,665.15
  4. Step 4: Simplify right side
    21,212,380.85x = 186,456,912,775,286.75
  5. Step 5: Solve for x
    x = 186,456,912,775,286.75/21,212,380.85
  6. Step 6: Final answer
    x = 8,790,004.01

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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.