Home / 7,085,939.64-9,778,906.80-3,988,662.84

Finding the Fourth Proportional to 7,085,939.64, 9,778,906.80 and 3,988,662.84

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Solution

The fourth proportional to 7,085,939.64, 9,778,906.80 and 3,988,662.84 is: 5,504,529.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,085,939.64 : 9,778,906.80 = 3,988,662.84 : x
  2. Step 2: Convert to fraction form
    7,085,939.64/9,778,906.80 = 3,988,662.84/x
  3. Step 3: Cross multiply
    7,085,939.64x = 9,778,906.80 × 3,988,662.84
  4. Step 4: Simplify right side
    7,085,939.64x = 39,004,762,168,983.31
  5. Step 5: Solve for x
    x = 39,004,762,168,983.31/7,085,939.64
  6. Step 6: Final answer
    x = 5,504,529.27

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1.5x scale

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.