Home / 12,161,521.55-16,782,899.22-6,654,896.87

Finding the Fourth Proportional to 12,161,521.55, 16,782,899.22 and 6,654,896.87

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Solution

The fourth proportional to 12,161,521.55, 16,782,899.22 and 6,654,896.87 is: 9,183,757.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,161,521.55 : 16,782,899.22 = 6,654,896.87 : x
  2. Step 2: Convert to fraction form
    12,161,521.55/16,782,899.22 = 6,654,896.87/x
  3. Step 3: Cross multiply
    12,161,521.55x = 16,782,899.22 × 6,654,896.87
  4. Step 4: Simplify right side
    12,161,521.55x = 111,688,463,404,788.94
  5. Step 5: Solve for x
    x = 111,688,463,404,788.94/12,161,521.55
  6. Step 6: Final answer
    x = 9,183,757.39

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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.