Home / 12,137,917.20-18,206,875.80-4,945,530.30

Finding the Fourth Proportional to 12,137,917.20, 18,206,875.80 and 4,945,530.30

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Solution

The fourth proportional to 12,137,917.20, 18,206,875.80 and 4,945,530.30 is: 7,418,295.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137,917.20 : 18,206,875.80 = 4,945,530.30 : x
  2. Step 2: Convert to fraction form
    12,137,917.20/18,206,875.80 = 4,945,530.30/x
  3. Step 3: Cross multiply
    12,137,917.20x = 18,206,875.80 × 4,945,530.30
  4. Step 4: Simplify right side
    12,137,917.20x = 90,042,655,937,236.73
  5. Step 5: Solve for x
    x = 90,042,655,937,236.73/12,137,917.20
  6. Step 6: Final answer
    x = 7,418,295.45

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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.