Home / 12,504,574.72-18,756,512.16-3,985,422.40

Finding the Fourth Proportional to 12,504,574.72, 18,756,512.16 and 3,985,422.40

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Solution

The fourth proportional to 12,504,574.72, 18,756,512.16 and 3,985,422.40 is: 5,978,022.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504,574.72 : 18,756,512.16 = 3,985,422.40 : x
  2. Step 2: Convert to fraction form
    12,504,574.72/18,756,512.16 = 3,985,422.40/x
  3. Step 3: Cross multiply
    12,504,574.72x = 18,756,512.16 × 3,985,422.40
  4. Step 4: Simplify right side
    12,504,574.72x = 74,752,623,708,336.39
  5. Step 5: Solve for x
    x = 74,752,623,708,336.39/12,504,574.72
  6. Step 6: Final answer
    x = 5,978,022.07

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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.