Home / 12,067,960.80-18,101,941.20-7,218,069.60

Finding the Fourth Proportional to 12,067,960.80, 18,101,941.20 and 7,218,069.60

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Solution

The fourth proportional to 12,067,960.80, 18,101,941.20 and 7,218,069.60 is: 10,827,104.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067,960.80 : 18,101,941.20 = 7,218,069.60 : x
  2. Step 2: Convert to fraction form
    12,067,960.80/18,101,941.20 = 7,218,069.60/x
  3. Step 3: Cross multiply
    12,067,960.80x = 18,101,941.20 × 7,218,069.60
  4. Step 4: Simplify right side
    12,067,960.80x = 130,661,071,476,707.52
  5. Step 5: Solve for x
    x = 130,661,071,476,707.52/12,067,960.80
  6. Step 6: Final answer
    x = 10,827,104.40

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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.