Home / 139,968,146.20-209,952,219.30-137,700,664.60

Finding the Fourth Proportional to 139,968,146.20, 209,952,219.30 and 137,700,664.60

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Solution

The fourth proportional to 139,968,146.20, 209,952,219.30 and 137,700,664.60 is: 206,550,996.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,146.20 : 209,952,219.30 = 137,700,664.60 : x
  2. Step 2: Convert to fraction form
    139,968,146.20/209,952,219.30 = 137,700,664.60/x
  3. Step 3: Cross multiply
    139,968,146.20x = 209,952,219.30 × 137,700,664.60
  4. Step 4: Simplify right side
    139,968,146.20x = 28,910,560,131,854,948
  5. Step 5: Solve for x
    x = 28,910,560,131,854,948/139,968,146.20
  6. Step 6: Final answer
    x = 206,550,996.90

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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.