Home / 21,711,939.57-29,962,997.15-11,789,240.45

Finding the Fourth Proportional to 21,711,939.57, 29,962,997.15 and 11,789,240.45

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Solution

The fourth proportional to 21,711,939.57, 29,962,997.15 and 11,789,240.45 is: 16,269,434.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,711,939.57 : 29,962,997.15 = 11,789,240.45 : x
  2. Step 2: Convert to fraction form
    21,711,939.57/29,962,997.15 = 11,789,240.45/x
  3. Step 3: Cross multiply
    21,711,939.57x = 29,962,997.15 × 11,789,240.45
  4. Step 4: Simplify right side
    21,711,939.57x = 353,240,977,795,253.56
  5. Step 5: Solve for x
    x = 353,240,977,795,253.56/21,711,939.57
  6. Step 6: Final answer
    x = 16,269,434.46

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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.