Home / 7,790,686.20-11,739,206.38-6,401,853.72

Finding the Fourth Proportional to 7,790,686.20, 11,739,206.38 and 6,401,853.72

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Solution

The fourth proportional to 7,790,686.20, 11,739,206.38 and 6,401,853.72 is: 9,646,477.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,790,686.20 : 11,739,206.38 = 6,401,853.72 : x
  2. Step 2: Convert to fraction form
    7,790,686.20/11,739,206.38 = 6,401,853.72/x
  3. Step 3: Cross multiply
    7,790,686.20x = 11,739,206.38 × 6,401,853.72
  4. Step 4: Simplify right side
    7,790,686.20x = 75,152,682,033,650.73
  5. Step 5: Solve for x
    x = 75,152,682,033,650.73/7,790,686.20
  6. Step 6: Final answer
    x = 9,646,477.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.