Home / 13,763,921.32-18,988,755.78-7,961,625.64

Finding the Fourth Proportional to 13,763,921.32, 18,988,755.78 and 7,961,625.64

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Solution

The fourth proportional to 13,763,921.32, 18,988,755.78 and 7,961,625.64 is: 10,983,887.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,763,921.32 : 18,988,755.78 = 7,961,625.64 : x
  2. Step 2: Convert to fraction form
    13,763,921.32/18,988,755.78 = 7,961,625.64/x
  3. Step 3: Cross multiply
    13,763,921.32x = 18,988,755.78 × 7,961,625.64
  4. Step 4: Simplify right side
    13,763,921.32x = 151,181,364,889,746.19
  5. Step 5: Solve for x
    x = 151,181,364,889,746.19/13,763,921.32
  6. Step 6: Final answer
    x = 10,983,887.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.