Home / 12,906,889-19,361,551.74-3,809,020.84

Finding the Fourth Proportional to 12,906,889, 19,361,551.74 and 3,809,020.84

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Solution

The fourth proportional to 12,906,889, 19,361,551.74 and 3,809,020.84 is: 5,713,890.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,889 : 19,361,551.74 = 3,809,020.84 : x
  2. Step 2: Convert to fraction form
    12,906,889/19,361,551.74 = 3,809,020.84/x
  3. Step 3: Cross multiply
    12,906,889x = 19,361,551.74 × 3,809,020.84
  4. Step 4: Simplify right side
    12,906,889x = 73,748,554,072,398.25
  5. Step 5: Solve for x
    x = 73,748,554,072,398.25/12,906,889
  6. Step 6: Final answer
    x = 5,713,890.78

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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.