Home / 12,158,072.46-18,243,394.43-5,339,437.65

Finding the Fourth Proportional to 12,158,072.46, 18,243,394.43 and 5,339,437.65

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Solution

The fourth proportional to 12,158,072.46, 18,243,394.43 and 5,339,437.65 is: 8,011,916.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,158,072.46 : 18,243,394.43 = 5,339,437.65 : x
  2. Step 2: Convert to fraction form
    12,158,072.46/18,243,394.43 = 5,339,437.65/x
  3. Step 3: Cross multiply
    12,158,072.46x = 18,243,394.43 × 5,339,437.65
  4. Step 4: Simplify right side
    12,158,072.46x = 97,409,467,056,645.11
  5. Step 5: Solve for x
    x = 97,409,467,056,645.11/12,158,072.46
  6. Step 6: Final answer
    x = 8,011,916.97

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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.