Home / 12,463,947.80-18,697,379.70-3,945,145.40

Finding the Fourth Proportional to 12,463,947.80, 18,697,379.70 and 3,945,145.40

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Solution

The fourth proportional to 12,463,947.80, 18,697,379.70 and 3,945,145.40 is: 5,918,179.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463,947.80 : 18,697,379.70 = 3,945,145.40 : x
  2. Step 2: Convert to fraction form
    12,463,947.80/18,697,379.70 = 3,945,145.40/x
  3. Step 3: Cross multiply
    12,463,947.80x = 18,697,379.70 × 3,945,145.40
  4. Step 4: Simplify right side
    12,463,947.80x = 73,763,881,515,508.38
  5. Step 5: Solve for x
    x = 73,763,881,515,508.38/12,463,947.80
  6. Step 6: Final answer
    x = 5,918,179.59

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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.