Home / 101,989,213.08-140,741,018.82-55,578,477.84

Finding the Fourth Proportional to 101,989,213.08, 140,741,018.82 and 55,578,477.84

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Solution

The fourth proportional to 101,989,213.08, 140,741,018.82 and 55,578,477.84 is: 76,696,067.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,989,213.08 : 140,741,018.82 = 55,578,477.84 : x
  2. Step 2: Convert to fraction form
    101,989,213.08/140,741,018.82 = 55,578,477.84/x
  3. Step 3: Cross multiply
    101,989,213.08x = 140,741,018.82 × 55,578,477.84
  4. Step 4: Simplify right side
    101,989,213.08x = 7,822,171,595,666,393
  5. Step 5: Solve for x
    x = 7,822,171,595,666,393/101,989,213.08
  6. Step 6: Final answer
    x = 76,696,067.75

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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.