Home / 206,537,655.80-309,475,809.30-109,366,621.40

Finding the Fourth Proportional to 206,537,655.80, 309,475,809.30 and 109,366,621.40

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Solution

The fourth proportional to 206,537,655.80, 309,475,809.30 and 109,366,621.40 is: 163,874,832.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,537,655.80 : 309,475,809.30 = 109,366,621.40 : x
  2. Step 2: Convert to fraction form
    206,537,655.80/309,475,809.30 = 109,366,621.40/x
  3. Step 3: Cross multiply
    206,537,655.80x = 309,475,809.30 × 109,366,621.40
  4. Step 4: Simplify right side
    206,537,655.80x = 33,846,323,668,171,704
  5. Step 5: Solve for x
    x = 33,846,323,668,171,704/206,537,655.80
  6. Step 6: Final answer
    x = 163,874,832.11

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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.