Home / 12,285,977.20-18,428,965.80-6,239,359.60

Finding the Fourth Proportional to 12,285,977.20, 18,428,965.80 and 6,239,359.60

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Solution

The fourth proportional to 12,285,977.20, 18,428,965.80 and 6,239,359.60 is: 9,359,039.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,285,977.20 : 18,428,965.80 = 6,239,359.60 : x
  2. Step 2: Convert to fraction form
    12,285,977.20/18,428,965.80 = 6,239,359.60/x
  3. Step 3: Cross multiply
    12,285,977.20x = 18,428,965.80 × 6,239,359.60
  4. Step 4: Simplify right side
    12,285,977.20x = 114,984,944,682,301.67
  5. Step 5: Solve for x
    x = 114,984,944,682,301.67/12,285,977.20
  6. Step 6: Final answer
    x = 9,359,039.40

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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.