Home / 21,885,103.48-30,205,193.07-12,723,060.64

Finding the Fourth Proportional to 21,885,103.48, 30,205,193.07 and 12,723,060.64

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Solution

The fourth proportional to 21,885,103.48, 30,205,193.07 and 12,723,060.64 is: 17,560,003.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,885,103.48 : 30,205,193.07 = 12,723,060.64 : x
  2. Step 2: Convert to fraction form
    21,885,103.48/30,205,193.07 = 12,723,060.64/x
  3. Step 3: Cross multiply
    21,885,103.48x = 30,205,193.07 × 12,723,060.64
  4. Step 4: Simplify right side
    21,885,103.48x = 384,302,503,072,517.81
  5. Step 5: Solve for x
    x = 384,302,503,072,517.81/21,885,103.48
  6. Step 6: Final answer
    x = 17,560,003.93

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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.