Home / 21,103,487.20-29,122,814.64-11,935,935.20

Finding the Fourth Proportional to 21,103,487.20, 29,122,814.64 and 11,935,935.20

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Solution

The fourth proportional to 21,103,487.20, 29,122,814.64 and 11,935,935.20 is: 16,471,591.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,103,487.20 : 29,122,814.64 = 11,935,935.20 : x
  2. Step 2: Convert to fraction form
    21,103,487.20/29,122,814.64 = 11,935,935.20/x
  3. Step 3: Cross multiply
    21,103,487.20x = 29,122,814.64 × 11,935,935.20
  4. Step 4: Simplify right side
    21,103,487.20x = 347,608,028,384,651.31
  5. Step 5: Solve for x
    x = 347,608,028,384,651.31/21,103,487.20
  6. Step 6: Final answer
    x = 16,471,591.88

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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.