Home / 20,872,887.68-31,310,315.67-17,222,847.56

Finding the Fourth Proportional to 20,872,887.68, 31,310,315.67 and 17,222,847.56

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Solution

The fourth proportional to 20,872,887.68, 31,310,315.67 and 17,222,847.56 is: 25,835,083.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,872,887.68 : 31,310,315.67 = 17,222,847.56 : x
  2. Step 2: Convert to fraction form
    20,872,887.68/31,310,315.67 = 17,222,847.56/x
  3. Step 3: Cross multiply
    20,872,887.68x = 31,310,315.67 × 17,222,847.56
  4. Step 4: Simplify right side
    20,872,887.68x = 539,252,793,865,337
  5. Step 5: Solve for x
    x = 539,252,793,865,337/20,872,887.68
  6. Step 6: Final answer
    x = 25,835,083.39

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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.