Home / 3,905,479.40-5,389,501.38-2,186,661.42

Finding the Fourth Proportional to 3,905,479.40, 5,389,501.38 and 2,186,661.42

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Solution

The fourth proportional to 3,905,479.40, 5,389,501.38 and 2,186,661.42 is: 3,017,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,905,479.40 : 5,389,501.38 = 2,186,661.42 : x
  2. Step 2: Convert to fraction form
    3,905,479.40/5,389,501.38 = 2,186,661.42/x
  3. Step 3: Cross multiply
    3,905,479.40x = 5,389,501.38 × 2,186,661.42
  4. Step 4: Simplify right side
    3,905,479.40x = 11,785,014,740,682.76
  5. Step 5: Solve for x
    x = 11,785,014,740,682.76/3,905,479.40
  6. Step 6: Final answer
    x = 3,017,559.06

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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.