Home / 210,385,073.80-315,577,610.70-137,825,662.60

Finding the Fourth Proportional to 210,385,073.80, 315,577,610.70 and 137,825,662.60

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Solution

The fourth proportional to 210,385,073.80, 315,577,610.70 and 137,825,662.60 is: 206,738,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,385,073.80 : 315,577,610.70 = 137,825,662.60 : x
  2. Step 2: Convert to fraction form
    210,385,073.80/315,577,610.70 = 137,825,662.60/x
  3. Step 3: Cross multiply
    210,385,073.80x = 315,577,610.70 × 137,825,662.60
  4. Step 4: Simplify right side
    210,385,073.80x = 43,494,693,296,452,344
  5. Step 5: Solve for x
    x = 43,494,693,296,452,344/210,385,073.80
  6. Step 6: Final answer
    x = 206,738,493.90

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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.