Home / 9,621,864.81-13,278,067.65-5,211,480.69

Finding the Fourth Proportional to 9,621,864.81, 13,278,067.65 and 5,211,480.69

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Solution

The fourth proportional to 9,621,864.81, 13,278,067.65 and 5,211,480.69 is: 7,191,786.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,621,864.81 : 13,278,067.65 = 5,211,480.69 : x
  2. Step 2: Convert to fraction form
    9,621,864.81/13,278,067.65 = 5,211,480.69/x
  3. Step 3: Cross multiply
    9,621,864.81x = 13,278,067.65 × 5,211,480.69
  4. Step 4: Simplify right side
    9,621,864.81x = 69,198,393,158,488.69
  5. Step 5: Solve for x
    x = 69,198,393,158,488.69/9,621,864.81
  6. Step 6: Final answer
    x = 7,191,786.05

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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.