Home / 3,930,019.80-5,891,465.70-1,405,087.80

Finding the Fourth Proportional to 3,930,019.80, 5,891,465.70 and 1,405,087.80

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Solution

The fourth proportional to 3,930,019.80, 5,891,465.70 and 1,405,087.80 is: 2,106,357.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,930,019.80 : 5,891,465.70 = 1,405,087.80 : x
  2. Step 2: Convert to fraction form
    3,930,019.80/5,891,465.70 = 1,405,087.80/x
  3. Step 3: Cross multiply
    3,930,019.80x = 5,891,465.70 × 1,405,087.80
  4. Step 4: Simplify right side
    3,930,019.80x = 8,278,026,579,188.46
  5. Step 5: Solve for x
    x = 8,278,026,579,188.46/3,930,019.80
  6. Step 6: Final answer
    x = 2,106,357.47

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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.