Home / 12,697,143.74-19,040,841.92-5,405,980.94

Finding the Fourth Proportional to 12,697,143.74, 19,040,841.92 and 5,405,980.94

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Solution

The fourth proportional to 12,697,143.74, 19,040,841.92 and 5,405,980.94 is: 8,106,896.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697,143.74 : 19,040,841.92 = 5,405,980.94 : x
  2. Step 2: Convert to fraction form
    12,697,143.74/19,040,841.92 = 5,405,980.94/x
  3. Step 3: Cross multiply
    12,697,143.74x = 19,040,841.92 × 5,405,980.94
  4. Step 4: Simplify right side
    12,697,143.74x = 102,934,428,501,073.02
  5. Step 5: Solve for x
    x = 102,934,428,501,073.02/12,697,143.74
  6. Step 6: Final answer
    x = 8,106,896.37

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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.