Home / 21,011,007.09-28,995,633.45-11,843,647.41

Finding the Fourth Proportional to 21,011,007.09, 28,995,633.45 and 11,843,647.41

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Solution

The fourth proportional to 21,011,007.09, 28,995,633.45 and 11,843,647.41 is: 16,344,483.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,011,007.09 : 28,995,633.45 = 11,843,647.41 : x
  2. Step 2: Convert to fraction form
    21,011,007.09/28,995,633.45 = 11,843,647.41/x
  3. Step 3: Cross multiply
    21,011,007.09x = 28,995,633.45 × 11,843,647.41
  4. Step 4: Simplify right side
    21,011,007.09x = 343,414,059,011,401.88
  5. Step 5: Solve for x
    x = 343,414,059,011,401.88/21,011,007.09
  6. Step 6: Final answer
    x = 16,344,483.51

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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.