Home / 521,471,878.20-782,302,295.70-262,034,191.80

Finding the Fourth Proportional to 521,471,878.20, 782,302,295.70 and 262,034,191.80

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Solution

The fourth proportional to 521,471,878.20, 782,302,295.70 and 262,034,191.80 is: 393,098,762.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,471,878.20 : 782,302,295.70 = 262,034,191.80 : x
  2. Step 2: Convert to fraction form
    521,471,878.20/782,302,295.70 = 262,034,191.80/x
  3. Step 3: Cross multiply
    521,471,878.20x = 782,302,295.70 × 262,034,191.80
  4. Step 4: Simplify right side
    521,471,878.20x = 204,989,949,797,034,144
  5. Step 5: Solve for x
    x = 204,989,949,797,034,144/521,471,878.20
  6. Step 6: Final answer
    x = 393,098,762.11

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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.