Home / 138,809,095.65-206,972,654.45-134,995,425.21

Finding the Fourth Proportional to 138,809,095.65, 206,972,654.45 and 134,995,425.21

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Solution

The fourth proportional to 138,809,095.65, 206,972,654.45 and 134,995,425.21 is: 201,286,243.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,809,095.65 : 206,972,654.45 = 134,995,425.21 : x
  2. Step 2: Convert to fraction form
    138,809,095.65/206,972,654.45 = 134,995,425.21/x
  3. Step 3: Cross multiply
    138,809,095.65x = 206,972,654.45 × 134,995,425.21
  4. Step 4: Simplify right side
    138,809,095.65x = 27,940,361,493,645,172
  5. Step 5: Solve for x
    x = 27,940,361,493,645,172/138,809,095.65
  6. Step 6: Final answer
    x = 201,286,243.98

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.