Home / 12,454,937.60-18,682,406.40-7,647,036.80

Finding the Fourth Proportional to 12,454,937.60, 18,682,406.40 and 7,647,036.80

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Solution

The fourth proportional to 12,454,937.60, 18,682,406.40 and 7,647,036.80 is: 11,470,555.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,454,937.60 : 18,682,406.40 = 7,647,036.80 : x
  2. Step 2: Convert to fraction form
    12,454,937.60/18,682,406.40 = 7,647,036.80/x
  3. Step 3: Cross multiply
    12,454,937.60x = 18,682,406.40 × 7,647,036.80
  4. Step 4: Simplify right side
    12,454,937.60x = 142,865,049,253,355.50
  5. Step 5: Solve for x
    x = 142,865,049,253,355.50/12,454,937.60
  6. Step 6: Final answer
    x = 11,470,555.20

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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.