Home / 521,997,874.87-720,360,814.70-283,841,352.73

Finding the Fourth Proportional to 521,997,874.87, 720,360,814.70 and 283,841,352.73

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Solution

The fourth proportional to 521,997,874.87, 720,360,814.70 and 283,841,352.73 is: 391,703,104.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,997,874.87 : 720,360,814.70 = 283,841,352.73 : x
  2. Step 2: Convert to fraction form
    521,997,874.87/720,360,814.70 = 283,841,352.73/x
  3. Step 3: Cross multiply
    521,997,874.87x = 720,360,814.70 × 283,841,352.73
  4. Step 4: Simplify right side
    521,997,874.87x = 204,468,188,098,132,896
  5. Step 5: Solve for x
    x = 204,468,188,098,132,896/521,997,874.87
  6. Step 6: Final answer
    x = 391,703,104.44

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1.5x scale

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.