Home / 11,971,776.23-16,521,051.15-6,465,150.78

Finding the Fourth Proportional to 11,971,776.23, 16,521,051.15 and 6,465,150.78

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Solution

The fourth proportional to 11,971,776.23, 16,521,051.15 and 6,465,150.78 is: 8,921,908.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971,776.23 : 16,521,051.15 = 6,465,150.78 : x
  2. Step 2: Convert to fraction form
    11,971,776.23/16,521,051.15 = 6,465,150.78/x
  3. Step 3: Cross multiply
    11,971,776.23x = 16,521,051.15 × 6,465,150.78
  4. Step 4: Simplify right side
    11,971,776.23x = 106,811,086,728,842.41
  5. Step 5: Solve for x
    x = 106,811,086,728,842.41/11,971,776.23
  6. Step 6: Final answer
    x = 8,921,908.05

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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.