Home / 11,971,780.74-16,521,057.36-6,465,155.31

Finding the Fourth Proportional to 11,971,780.74, 16,521,057.36 and 6,465,155.31

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Solution

The fourth proportional to 11,971,780.74, 16,521,057.36 and 6,465,155.31 is: 8,921,914.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971,780.74 : 16,521,057.36 = 6,465,155.31 : x
  2. Step 2: Convert to fraction form
    11,971,780.74/16,521,057.36 = 6,465,155.31/x
  3. Step 3: Cross multiply
    11,971,780.74x = 16,521,057.36 × 6,465,155.31
  4. Step 4: Simplify right side
    11,971,780.74x = 106,811,201,717,818.58
  5. Step 5: Solve for x
    x = 106,811,201,717,818.58/11,971,780.74
  6. Step 6: Final answer
    x = 8,921,914.29

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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.