Home / 12,906,438.96-19,371,628.56-6,521,175.36

Finding the Fourth Proportional to 12,906,438.96, 19,371,628.56 and 6,521,175.36

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Solution

The fourth proportional to 12,906,438.96, 19,371,628.56 and 6,521,175.36 is: 9,787,811.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,438.96 : 19,371,628.56 = 6,521,175.36 : x
  2. Step 2: Convert to fraction form
    12,906,438.96/19,371,628.56 = 6,521,175.36/x
  3. Step 3: Cross multiply
    12,906,438.96x = 19,371,628.56 × 6,521,175.36
  4. Step 4: Simplify right side
    12,906,438.96x = 126,325,786,848,544.28
  5. Step 5: Solve for x
    x = 126,325,786,848,544.28/12,906,438.96
  6. Step 6: Final answer
    x = 9,787,811.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.