Home / 12,236,830.80-18,355,246.20-6,928,414.80

Finding the Fourth Proportional to 12,236,830.80, 18,355,246.20 and 6,928,414.80

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Solution

The fourth proportional to 12,236,830.80, 18,355,246.20 and 6,928,414.80 is: 10,392,622.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,236,830.80 : 18,355,246.20 = 6,928,414.80 : x
  2. Step 2: Convert to fraction form
    12,236,830.80/18,355,246.20 = 6,928,414.80/x
  3. Step 3: Cross multiply
    12,236,830.80x = 18,355,246.20 × 6,928,414.80
  4. Step 4: Simplify right side
    12,236,830.80x = 127,172,759,429,723.75
  5. Step 5: Solve for x
    x = 127,172,759,429,723.75/12,236,830.80
  6. Step 6: Final answer
    x = 10,392,622.20

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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.