Home / 22,172,021.15-30,375,161.55-21,343,057.94

Finding the Fourth Proportional to 22,172,021.15, 30,375,161.55 and 21,343,057.94

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Solution

The fourth proportional to 22,172,021.15, 30,375,161.55 and 21,343,057.94 is: 29,239,500.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,172,021.15 : 30,375,161.55 = 21,343,057.94 : x
  2. Step 2: Convert to fraction form
    22,172,021.15/30,375,161.55 = 21,343,057.94/x
  3. Step 3: Cross multiply
    22,172,021.15x = 30,375,161.55 × 21,343,057.94
  4. Step 4: Simplify right side
    22,172,021.15x = 648,298,832,746,634.38
  5. Step 5: Solve for x
    x = 648,298,832,746,634.38/22,172,021.15
  6. Step 6: Final answer
    x = 29,239,500.92

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.