Home / 147,672,412.12-203,792,039.67-81,597,189.43

Finding the Fourth Proportional to 147,672,412.12, 203,792,039.67 and 81,597,189.43

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Solution

The fourth proportional to 147,672,412.12, 203,792,039.67 and 81,597,189.43 is: 112,606,392.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,672,412.12 : 203,792,039.67 = 81,597,189.43 : x
  2. Step 2: Convert to fraction form
    147,672,412.12/203,792,039.67 = 81,597,189.43/x
  3. Step 3: Cross multiply
    147,672,412.12x = 203,792,039.67 × 81,597,189.43
  4. Step 4: Simplify right side
    147,672,412.12x = 16,628,857,665,279,066
  5. Step 5: Solve for x
    x = 16,628,857,665,279,066/147,672,412.12
  6. Step 6: Final answer
    x = 112,606,392.94

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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.