Home / 11,971,773.23-16,521,047.01-6,465,147.78

Finding the Fourth Proportional to 11,971,773.23, 16,521,047.01 and 6,465,147.78

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Solution

The fourth proportional to 11,971,773.23, 16,521,047.01 and 6,465,147.78 is: 8,921,903.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971,773.23 : 16,521,047.01 = 6,465,147.78 : x
  2. Step 2: Convert to fraction form
    11,971,773.23/16,521,047.01 = 6,465,147.78/x
  3. Step 3: Cross multiply
    11,971,773.23x = 16,521,047.01 × 6,465,147.78
  4. Step 4: Simplify right side
    11,971,773.23x = 106,811,010,399,977.14
  5. Step 5: Solve for x
    x = 106,811,010,399,977.14/11,971,773.23
  6. Step 6: Final answer
    x = 8,921,903.91

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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.