Home / 85,192,718.80-127,789,080-20,496,523.93

Finding the Fourth Proportional to 85,192,718.80, 127,789,080 and 20,496,523.93

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Solution

The fourth proportional to 85,192,718.80, 127,789,080 and 20,496,523.93 is: 30,744,786.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,192,718.80 : 127,789,080 = 20,496,523.93 : x
  2. Step 2: Convert to fraction form
    85,192,718.80/127,789,080 = 20,496,523.93/x
  3. Step 3: Cross multiply
    85,192,718.80x = 127,789,080 × 20,496,523.93
  4. Step 4: Simplify right side
    85,192,718.80x = 2,619,231,936,212,684.50
  5. Step 5: Solve for x
    x = 2,619,231,936,212,684.50/85,192,718.80
  6. Step 6: Final answer
    x = 30,744,786.33

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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.