Home / 12,906,701.80-19,360,052.70-3,930,087.40

Finding the Fourth Proportional to 12,906,701.80, 19,360,052.70 and 3,930,087.40

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Solution

The fourth proportional to 12,906,701.80, 19,360,052.70 and 3,930,087.40 is: 5,895,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906,701.80 : 19,360,052.70 = 3,930,087.40 : x
  2. Step 2: Convert to fraction form
    12,906,701.80/19,360,052.70 = 3,930,087.40/x
  3. Step 3: Cross multiply
    12,906,701.80x = 19,360,052.70 × 3,930,087.40
  4. Step 4: Simplify right side
    12,906,701.80x = 76,086,699,179,605.97
  5. Step 5: Solve for x
    x = 76,086,699,179,605.97/12,906,701.80
  6. Step 6: Final answer
    x = 5,895,131.10

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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.