Home / 147,259,956.72-203,219,356.23-81,179,004.51

Finding the Fourth Proportional to 147,259,956.72, 203,219,356.23 and 81,179,004.51

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Solution

The fourth proportional to 147,259,956.72, 203,219,356.23 and 81,179,004.51 is: 112,027,365.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,259,956.72 : 203,219,356.23 = 81,179,004.51 : x
  2. Step 2: Convert to fraction form
    147,259,956.72/203,219,356.23 = 81,179,004.51/x
  3. Step 3: Cross multiply
    147,259,956.72x = 203,219,356.23 × 81,179,004.51
  4. Step 4: Simplify right side
    147,259,956.72x = 16,497,145,035,914,466
  5. Step 5: Solve for x
    x = 16,497,145,035,914,466/147,259,956.72
  6. Step 6: Final answer
    x = 112,027,365.78

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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.