Home / 18,790,072.65-28,178,195.49-6,490,907.10

Finding the Fourth Proportional to 18,790,072.65, 28,178,195.49 and 6,490,907.10

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Solution

The fourth proportional to 18,790,072.65, 28,178,195.49 and 6,490,907.10 is: 9,733,972.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,790,072.65 : 28,178,195.49 = 6,490,907.10 : x
  2. Step 2: Convert to fraction form
    18,790,072.65/28,178,195.49 = 6,490,907.10/x
  3. Step 3: Cross multiply
    18,790,072.65x = 28,178,195.49 × 6,490,907.10
  4. Step 4: Simplify right side
    18,790,072.65x = 182,902,049,171,228.97
  5. Step 5: Solve for x
    x = 182,902,049,171,228.97/18,790,072.65
  6. Step 6: Final answer
    x = 9,733,972.43

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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.