Home / 2,185,121.93-3,015,480.89-1,218,312.41

Finding the Fourth Proportional to 2,185,121.93, 3,015,480.89 and 1,218,312.41

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Solution

The fourth proportional to 2,185,121.93, 3,015,480.89 and 1,218,312.41 is: 1,681,278.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,185,121.93 : 3,015,480.89 = 1,218,312.41 : x
  2. Step 2: Convert to fraction form
    2,185,121.93/3,015,480.89 = 1,218,312.41/x
  3. Step 3: Cross multiply
    2,185,121.93x = 3,015,480.89 × 1,218,312.41
  4. Step 4: Simplify right side
    2,185,121.93x = 3,673,797,778,373.22
  5. Step 5: Solve for x
    x = 3,673,797,778,373.22/2,185,121.93
  6. Step 6: Final answer
    x = 1,681,278.16

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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.