Home / 12,432,638.70-17,032,775.79-11,966,666.78

Finding the Fourth Proportional to 12,432,638.70, 17,032,775.79 and 11,966,666.78

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Solution

The fourth proportional to 12,432,638.70, 17,032,775.79 and 11,966,666.78 is: 16,394,391.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,432,638.70 : 17,032,775.79 = 11,966,666.78 : x
  2. Step 2: Convert to fraction form
    12,432,638.70/17,032,775.79 = 11,966,666.78/x
  3. Step 3: Cross multiply
    12,432,638.70x = 17,032,775.79 × 11,966,666.78
  4. Step 4: Simplify right side
    12,432,638.70x = 203,825,552,217,381.22
  5. Step 5: Solve for x
    x = 203,825,552,217,381.22/12,432,638.70
  6. Step 6: Final answer
    x = 16,394,391.98

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.