Home / 206,820,121.44-310,149,467.82-90,271,124.40

Finding the Fourth Proportional to 206,820,121.44, 310,149,467.82 and 90,271,124.40

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Solution

The fourth proportional to 206,820,121.44, 310,149,467.82 and 90,271,124.40 is: 135,371,457.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,820,121.44 : 310,149,467.82 = 90,271,124.40 : x
  2. Step 2: Convert to fraction form
    206,820,121.44/310,149,467.82 = 90,271,124.40/x
  3. Step 3: Cross multiply
    206,820,121.44x = 310,149,467.82 × 90,271,124.40
  4. Step 4: Simplify right side
    206,820,121.44x = 27,997,541,192,173,020
  5. Step 5: Solve for x
    x = 27,997,541,192,173,020/206,820,121.44
  6. Step 6: Final answer
    x = 135,371,457.08

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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.