Home / 206,537,653.80-309,475,806.30-109,366,619.40

Finding the Fourth Proportional to 206,537,653.80, 309,475,806.30 and 109,366,619.40

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Solution

The fourth proportional to 206,537,653.80, 309,475,806.30 and 109,366,619.40 is: 163,874,829.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,537,653.80 : 309,475,806.30 = 109,366,619.40 : x
  2. Step 2: Convert to fraction form
    206,537,653.80/309,475,806.30 = 109,366,619.40/x
  3. Step 3: Cross multiply
    206,537,653.80x = 309,475,806.30 × 109,366,619.40
  4. Step 4: Simplify right side
    206,537,653.80x = 33,846,322,721,120,224
  5. Step 5: Solve for x
    x = 33,846,322,721,120,224/206,537,653.80
  6. Step 6: Final answer
    x = 163,874,829.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.