Home / 12,796,446.60-19,185,338.70-5,219,512.20

Finding the Fourth Proportional to 12,796,446.60, 19,185,338.70 and 5,219,512.20

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Solution

The fourth proportional to 12,796,446.60, 19,185,338.70 and 5,219,512.20 is: 7,825,462.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,796,446.60 : 19,185,338.70 = 5,219,512.20 : x
  2. Step 2: Convert to fraction form
    12,796,446.60/19,185,338.70 = 5,219,512.20/x
  3. Step 3: Cross multiply
    12,796,446.60x = 19,185,338.70 × 5,219,512.20
  4. Step 4: Simplify right side
    12,796,446.60x = 100,138,109,405,782.14
  5. Step 5: Solve for x
    x = 100,138,109,405,782.14/12,796,446.60
  6. Step 6: Final answer
    x = 7,825,462.22

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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.