Home / 345,131,009.50-476,291,107.38-188,505,505.30

Finding the Fourth Proportional to 345,131,009.50, 476,291,107.38 and 188,505,505.30

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Solution

The fourth proportional to 345,131,009.50, 476,291,107.38 and 188,505,505.30 is: 260,143,230.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,131,009.50 : 476,291,107.38 = 188,505,505.30 : x
  2. Step 2: Convert to fraction form
    345,131,009.50/476,291,107.38 = 188,505,505.30/x
  3. Step 3: Cross multiply
    345,131,009.50x = 476,291,107.38 × 188,505,505.30
  4. Step 4: Simplify right side
    345,131,009.50x = 89,783,495,866,563,456
  5. Step 5: Solve for x
    x = 89,783,495,866,563,456/345,131,009.50
  6. Step 6: Final answer
    x = 260,143,230.82

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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.