Home / 31,657,021.92-43,651,998.74-20,623,310.33

Finding the Fourth Proportional to 31,657,021.92, 43,651,998.74 and 20,623,310.33

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Solution

The fourth proportional to 31,657,021.92, 43,651,998.74 and 20,623,310.33 is: 28,437,568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,657,021.92 : 43,651,998.74 = 20,623,310.33 : x
  2. Step 2: Convert to fraction form
    31,657,021.92/43,651,998.74 = 20,623,310.33/x
  3. Step 3: Cross multiply
    31,657,021.92x = 43,651,998.74 × 20,623,310.33
  4. Step 4: Simplify right side
    31,657,021.92x = 900,248,716,218,412.38
  5. Step 5: Solve for x
    x = 900,248,716,218,412.38/31,657,021.92
  6. Step 6: Final answer
    x = 28,437,568.09

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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.