Home / 5,085,120.08-7,015,752.60-2,879,681.36

Finding the Fourth Proportional to 5,085,120.08, 7,015,752.60 and 2,879,681.36

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Solution

The fourth proportional to 5,085,120.08, 7,015,752.60 and 2,879,681.36 is: 3,972,990.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,085,120.08 : 7,015,752.60 = 2,879,681.36 : x
  2. Step 2: Convert to fraction form
    5,085,120.08/7,015,752.60 = 2,879,681.36/x
  3. Step 3: Cross multiply
    5,085,120.08x = 7,015,752.60 × 2,879,681.36
  4. Step 4: Simplify right side
    5,085,120.08x = 20,203,131,988,591.54
  5. Step 5: Solve for x
    x = 20,203,131,988,591.54/5,085,120.08
  6. Step 6: Final answer
    x = 3,972,990.15

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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.