Home / 21,011,008.09-28,995,634.83-11,843,648.41

Finding the Fourth Proportional to 21,011,008.09, 28,995,634.83 and 11,843,648.41

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Solution

The fourth proportional to 21,011,008.09, 28,995,634.83 and 11,843,648.41 is: 16,344,484.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,008.09 : 28,995,634.83 = 11,843,648.41 : x
  2. Step 2: Convert to fraction form
    21,011,008.09/28,995,634.83 = 11,843,648.41/x
  3. Step 3: Cross multiply
    21,011,008.09x = 28,995,634.83 × 11,843,648.41
  4. Step 4: Simplify right side
    21,011,008.09x = 343,414,104,351,270.12
  5. Step 5: Solve for x
    x = 343,414,104,351,270.12/21,011,008.09
  6. Step 6: Final answer
    x = 16,344,484.89

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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.