Home / 516,917,929.96-775,604,474.43-271,215,317.80

Finding the Fourth Proportional to 516,917,929.96, 775,604,474.43 and 271,215,317.80

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Solution

The fourth proportional to 516,917,929.96, 775,604,474.43 and 271,215,317.80 is: 406,942,382.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,917,929.96 : 775,604,474.43 = 271,215,317.80 : x
  2. Step 2: Convert to fraction form
    516,917,929.96/775,604,474.43 = 271,215,317.80/x
  3. Step 3: Cross multiply
    516,917,929.96x = 775,604,474.43 × 271,215,317.80
  4. Step 4: Simplify right side
    516,917,929.96x = 210,355,814,019,634,432
  5. Step 5: Solve for x
    x = 210,355,814,019,634,432/516,917,929.96
  6. Step 6: Final answer
    x = 406,942,382.59

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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.