Home / 147,147,709.39-203,073,011.23-81,068,193.97

Finding the Fourth Proportional to 147,147,709.39, 203,073,011.23 and 81,068,193.97

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Solution

The fourth proportional to 147,147,709.39, 203,073,011.23 and 81,068,193.97 is: 111,879,160.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,147,709.39 : 203,073,011.23 = 81,068,193.97 : x
  2. Step 2: Convert to fraction form
    147,147,709.39/203,073,011.23 = 81,068,193.97/x
  3. Step 3: Cross multiply
    147,147,709.39x = 203,073,011.23 × 81,068,193.97
  4. Step 4: Simplify right side
    147,147,709.39x = 16,462,762,264,770,638
  5. Step 5: Solve for x
    x = 16,462,762,264,770,638/147,147,709.39
  6. Step 6: Final answer
    x = 111,879,160.97

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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.