Home / 500,412,932.64-690,575,464.62-285,859,991.88

Finding the Fourth Proportional to 500,412,932.64, 690,575,464.62 and 285,859,991.88

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Solution

The fourth proportional to 500,412,932.64, 690,575,464.62 and 285,859,991.88 is: 394,489,997.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,412,932.64 : 690,575,464.62 = 285,859,991.88 : x
  2. Step 2: Convert to fraction form
    500,412,932.64/690,575,464.62 = 285,859,991.88/x
  3. Step 3: Cross multiply
    500,412,932.64x = 690,575,464.62 × 285,859,991.88
  4. Step 4: Simplify right side
    500,412,932.64x = 197,407,896,708,800,416
  5. Step 5: Solve for x
    x = 197,407,896,708,800,416/500,412,932.64
  6. Step 6: Final answer
    x = 394,489,997.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.