Home / 12,137,311.20-18,205,966.80-5,760,019.20

Finding the Fourth Proportional to 12,137,311.20, 18,205,966.80 and 5,760,019.20

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Solution

The fourth proportional to 12,137,311.20, 18,205,966.80 and 5,760,019.20 is: 8,640,028.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,311.20 : 18,205,966.80 = 5,760,019.20 : x
  2. Step 2: Convert to fraction form
    12,137,311.20/18,205,966.80 = 5,760,019.20/x
  3. Step 3: Cross multiply
    12,137,311.20x = 18,205,966.80 × 5,760,019.20
  4. Step 4: Simplify right side
    12,137,311.20x = 104,866,718,322,562.56
  5. Step 5: Solve for x
    x = 104,866,718,322,562.56/12,137,311.20
  6. Step 6: Final answer
    x = 8,640,028.80

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1.5x scale

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.