Home / 20,475,593.21-28,256,145.41-11,308,039.13

Finding the Fourth Proportional to 20,475,593.21, 28,256,145.41 and 11,308,039.13

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Solution

The fourth proportional to 20,475,593.21, 28,256,145.41 and 11,308,039.13 is: 15,604,998.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,475,593.21 : 28,256,145.41 = 11,308,039.13 : x
  2. Step 2: Convert to fraction form
    20,475,593.21/28,256,145.41 = 11,308,039.13/x
  3. Step 3: Cross multiply
    20,475,593.21x = 28,256,145.41 × 11,308,039.13
  4. Step 4: Simplify right side
    20,475,593.21x = 319,521,597,761,429
  5. Step 5: Solve for x
    x = 319,521,597,761,429/20,475,593.21
  6. Step 6: Final answer
    x = 15,604,998.33

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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.