Home / 3,905,478.15-5,389,499.66-2,186,660.18

Finding the Fourth Proportional to 3,905,478.15, 5,389,499.66 and 2,186,660.18

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Solution

The fourth proportional to 3,905,478.15, 5,389,499.66 and 2,186,660.18 is: 3,017,557.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905,478.15 : 5,389,499.66 = 2,186,660.18 : x
  2. Step 2: Convert to fraction form
    3,905,478.15/5,389,499.66 = 2,186,660.18/x
  3. Step 3: Cross multiply
    3,905,478.15x = 5,389,499.66 × 2,186,660.18
  4. Step 4: Simplify right side
    3,905,478.15x = 11,785,004,258,764.74
  5. Step 5: Solve for x
    x = 11,785,004,258,764.74/3,905,478.15
  6. Step 6: Final answer
    x = 3,017,557.34

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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.