Home / 21,885,204.11-30,205,331.93-12,723,161.27

Finding the Fourth Proportional to 21,885,204.11, 30,205,331.93 and 12,723,161.27

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Solution

The fourth proportional to 21,885,204.11, 30,205,331.93 and 12,723,161.27 is: 17,560,142.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885,204.11 : 30,205,331.93 = 12,723,161.27 : x
  2. Step 2: Convert to fraction form
    21,885,204.11/30,205,331.93 = 12,723,161.27/x
  3. Step 3: Cross multiply
    21,885,204.11x = 30,205,331.93 × 12,723,161.27
  4. Step 4: Simplify right side
    21,885,204.11x = 384,307,309,240,051.62
  5. Step 5: Solve for x
    x = 384,307,309,240,051.62/21,885,204.11
  6. Step 6: Final answer
    x = 17,560,142.80

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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.