Home / 12,481,930.80-18,711,086.40-7,368,287.40

Finding the Fourth Proportional to 12,481,930.80, 18,711,086.40 and 7,368,287.40

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Solution

The fourth proportional to 12,481,930.80, 18,711,086.40 and 7,368,287.40 is: 11,045,459.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481,930.80 : 18,711,086.40 = 7,368,287.40 : x
  2. Step 2: Convert to fraction form
    12,481,930.80/18,711,086.40 = 7,368,287.40/x
  3. Step 3: Cross multiply
    12,481,930.80x = 18,711,086.40 × 7,368,287.40
  4. Step 4: Simplify right side
    12,481,930.80x = 137,868,662,161,431.36
  5. Step 5: Solve for x
    x = 137,868,662,161,431.36/12,481,930.80
  6. Step 6: Final answer
    x = 11,045,459.58

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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.