Home / 21,538,450.72-29,723,251.86-11,748,938.44

Finding the Fourth Proportional to 21,538,450.72, 29,723,251.86 and 11,748,938.44

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Solution

The fourth proportional to 21,538,450.72, 29,723,251.86 and 11,748,938.44 is: 16,213,638.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,538,450.72 : 29,723,251.86 = 11,748,938.44 : x
  2. Step 2: Convert to fraction form
    21,538,450.72/29,723,251.86 = 11,748,938.44/x
  3. Step 3: Cross multiply
    21,538,450.72x = 29,723,251.86 × 11,748,938.44
  4. Step 4: Simplify right side
    21,538,450.72x = 349,216,656,339,755.50
  5. Step 5: Solve for x
    x = 349,216,656,339,755.50/21,538,450.72
  6. Step 6: Final answer
    x = 16,213,638.62

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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.