Home / 21,180,917.96-31,767,313.50-8,227,054.28

Finding the Fourth Proportional to 21,180,917.96, 31,767,313.50 and 8,227,054.28

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Solution

The fourth proportional to 21,180,917.96, 31,767,313.50 and 8,227,054.28 is: 12,339,003.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,180,917.96 : 31,767,313.50 = 8,227,054.28 : x
  2. Step 2: Convert to fraction form
    21,180,917.96/31,767,313.50 = 8,227,054.28/x
  3. Step 3: Cross multiply
    21,180,917.96x = 31,767,313.50 × 8,227,054.28
  4. Step 4: Simplify right side
    21,180,917.96x = 261,351,412,494,276.78
  5. Step 5: Solve for x
    x = 261,351,412,494,276.78/21,180,917.96
  6. Step 6: Final answer
    x = 12,339,003.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.