Home / 21,457,806.45-29,610,871.85-12,166,001.76

Finding the Fourth Proportional to 21,457,806.45, 29,610,871.85 and 12,166,001.76

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Solution

The fourth proportional to 21,457,806.45, 29,610,871.85 and 12,166,001.76 is: 16,788,571.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,806.45 : 29,610,871.85 = 12,166,001.76 : x
  2. Step 2: Convert to fraction form
    21,457,806.45/29,610,871.85 = 12,166,001.76/x
  3. Step 3: Cross multiply
    21,457,806.45x = 29,610,871.85 × 12,166,001.76
  4. Step 4: Simplify right side
    21,457,806.45x = 360,245,919,042,234.44
  5. Step 5: Solve for x
    x = 360,245,919,042,234.44/21,457,806.45
  6. Step 6: Final answer
    x = 16,788,571.56

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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.