Home / 12,878,879.19-19,327,176.08-5,305,844.94

Finding the Fourth Proportional to 12,878,879.19, 19,327,176.08 and 5,305,844.94

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Solution

The fourth proportional to 12,878,879.19, 19,327,176.08 and 5,305,844.94 is: 7,962,416.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,879.19 : 19,327,176.08 = 5,305,844.94 : x
  2. Step 2: Convert to fraction form
    12,878,879.19/19,327,176.08 = 5,305,844.94/x
  3. Step 3: Cross multiply
    12,878,879.19x = 19,327,176.08 × 5,305,844.94
  4. Step 4: Simplify right side
    12,878,879.19x = 102,546,999,382,027.81
  5. Step 5: Solve for x
    x = 102,546,999,382,027.81/12,878,879.19
  6. Step 6: Final answer
    x = 7,962,416.44

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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.