Home / 12,072,605.40-18,108,908.10-7,277,826.60

Finding the Fourth Proportional to 12,072,605.40, 18,108,908.10 and 7,277,826.60

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Solution

The fourth proportional to 12,072,605.40, 18,108,908.10 and 7,277,826.60 is: 10,916,739.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,072,605.40 : 18,108,908.10 = 7,277,826.60 : x
  2. Step 2: Convert to fraction form
    12,072,605.40/18,108,908.10 = 7,277,826.60/x
  3. Step 3: Cross multiply
    12,072,605.40x = 18,108,908.10 × 7,277,826.60
  4. Step 4: Simplify right side
    12,072,605.40x = 131,793,493,067,135.47
  5. Step 5: Solve for x
    x = 131,793,493,067,135.47/12,072,605.40
  6. Step 6: Final answer
    x = 10,916,739.90

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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.