Home / 206,717,767.76-310,060,380.36-90,130,372.40

Finding the Fourth Proportional to 206,717,767.76, 310,060,380.36 and 90,130,372.40

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Solution

The fourth proportional to 206,717,767.76, 310,060,380.36 and 90,130,372.40 is: 135,188,464.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,717,767.76 : 310,060,380.36 = 90,130,372.40 : x
  2. Step 2: Convert to fraction form
    206,717,767.76/310,060,380.36 = 90,130,372.40/x
  3. Step 3: Cross multiply
    206,717,767.76x = 310,060,380.36 × 90,130,372.40
  4. Step 4: Simplify right side
    206,717,767.76x = 27,945,857,548,332,448
  5. Step 5: Solve for x
    x = 27,945,857,548,332,448/206,717,767.76
  6. Step 6: Final answer
    x = 135,188,464.21

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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.