Home / 521,673,399.20-782,604,577.20-262,235,712.80

Finding the Fourth Proportional to 521,673,399.20, 782,604,577.20 and 262,235,712.80

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Solution

The fourth proportional to 521,673,399.20, 782,604,577.20 and 262,235,712.80 is: 393,401,061.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,673,399.20 : 782,604,577.20 = 262,235,712.80 : x
  2. Step 2: Convert to fraction form
    521,673,399.20/782,604,577.20 = 262,235,712.80/x
  3. Step 3: Cross multiply
    521,673,399.20x = 782,604,577.20 × 262,235,712.80
  4. Step 4: Simplify right side
    521,673,399.20x = 205,226,869,142,584,640
  5. Step 5: Solve for x
    x = 205,226,869,142,584,640/521,673,399.20
  6. Step 6: Final answer
    x = 393,401,061.77

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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.