Home / 642,215,022.85-886,281,092.99-359,962,680.43

Finding the Fourth Proportional to 642,215,022.85, 886,281,092.99 and 359,962,680.43

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Solution

The fourth proportional to 642,215,022.85, 886,281,092.99 and 359,962,680.43 is: 496,762,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,215,022.85 : 886,281,092.99 = 359,962,680.43 : x
  2. Step 2: Convert to fraction form
    642,215,022.85/886,281,092.99 = 359,962,680.43/x
  3. Step 3: Cross multiply
    642,215,022.85x = 886,281,092.99 × 359,962,680.43
  4. Step 4: Simplify right side
    642,215,022.85x = 319,028,117,847,110,464
  5. Step 5: Solve for x
    x = 319,028,117,847,110,464/642,215,022.85
  6. Step 6: Final answer
    x = 496,762,153.63

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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.