Home / 521,685,171.20-782,622,235.20-262,247,484.80

Finding the Fourth Proportional to 521,685,171.20, 782,622,235.20 and 262,247,484.80

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Solution

The fourth proportional to 521,685,171.20, 782,622,235.20 and 262,247,484.80 is: 393,418,720.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,685,171.20 : 782,622,235.20 = 262,247,484.80 : x
  2. Step 2: Convert to fraction form
    521,685,171.20/782,622,235.20 = 262,247,484.80/x
  3. Step 3: Cross multiply
    521,685,171.20x = 782,622,235.20 × 262,247,484.80
  4. Step 4: Simplify right side
    521,685,171.20x = 205,240,712,729,754,048
  5. Step 5: Solve for x
    x = 205,240,712,729,754,048/521,685,171.20
  6. Step 6: Final answer
    x = 393,418,720.83

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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.