Home / 505,485,821.70-758,228,732.55-413,652,816.90

Finding the Fourth Proportional to 505,485,821.70, 758,228,732.55 and 413,652,816.90

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Solution

The fourth proportional to 505,485,821.70, 758,228,732.55 and 413,652,816.90 is: 620,479,225.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,485,821.70 : 758,228,732.55 = 413,652,816.90 : x
  2. Step 2: Convert to fraction form
    505,485,821.70/758,228,732.55 = 413,652,816.90/x
  3. Step 3: Cross multiply
    505,485,821.70x = 758,228,732.55 × 413,652,816.90
  4. Step 4: Simplify right side
    505,485,821.70x = 313,643,451,073,824,192
  5. Step 5: Solve for x
    x = 313,643,451,073,824,192/505,485,821.70
  6. Step 6: Final answer
    x = 620,479,225.35

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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.