Home / 8,707,385.57-12,016,199.78-4,787,208.40

Finding the Fourth Proportional to 8,707,385.57, 12,016,199.78 and 4,787,208.40

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Solution

The fourth proportional to 8,707,385.57, 12,016,199.78 and 4,787,208.40 is: 6,606,351.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,707,385.57 : 12,016,199.78 = 4,787,208.40 : x
  2. Step 2: Convert to fraction form
    8,707,385.57/12,016,199.78 = 4,787,208.40/x
  3. Step 3: Cross multiply
    8,707,385.57x = 12,016,199.78 × 4,787,208.40
  4. Step 4: Simplify right side
    8,707,385.57x = 57,524,052,438,877.11
  5. Step 5: Solve for x
    x = 57,524,052,438,877.11/8,707,385.57
  6. Step 6: Final answer
    x = 6,606,351.81

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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.