Home / 12,697,159.36-19,040,865.12-5,405,996.32

Finding the Fourth Proportional to 12,697,159.36, 19,040,865.12 and 5,405,996.32

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Solution

The fourth proportional to 12,697,159.36, 19,040,865.12 and 5,405,996.32 is: 8,106,919.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,697,159.36 : 19,040,865.12 = 5,405,996.32 : x
  2. Step 2: Convert to fraction form
    12,697,159.36/19,040,865.12 = 5,405,996.32/x
  3. Step 3: Cross multiply
    12,697,159.36x = 19,040,865.12 × 5,405,996.32
  4. Step 4: Simplify right side
    12,697,159.36x = 102,934,846,768,336.38
  5. Step 5: Solve for x
    x = 102,934,846,768,336.38/12,697,159.36
  6. Step 6: Final answer
    x = 8,106,919.34

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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.