Home / 3,640,383.80-5,471,073.30-3,178,489.40

Finding the Fourth Proportional to 3,640,383.80, 5,471,073.30 and 3,178,489.40

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Solution

The fourth proportional to 3,640,383.80, 5,471,073.30 and 3,178,489.40 is: 4,776,899.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,640,383.80 : 5,471,073.30 = 3,178,489.40 : x
  2. Step 2: Convert to fraction form
    3,640,383.80/5,471,073.30 = 3,178,489.40/x
  3. Step 3: Cross multiply
    3,640,383.80x = 5,471,073.30 × 3,178,489.40
  4. Step 4: Simplify right side
    3,640,383.80x = 17,389,748,490,673.02
  5. Step 5: Solve for x
    x = 17,389,748,490,673.02/3,640,383.80
  6. Step 6: Final answer
    x = 4,776,899.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.