Home / 149,321,866.60-206,064,132.90-80,644,234.60

Finding the Fourth Proportional to 149,321,866.60, 206,064,132.90 and 80,644,234.60

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Solution

The fourth proportional to 149,321,866.60, 206,064,132.90 and 80,644,234.60 is: 111,289,020.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,321,866.60 : 206,064,132.90 = 80,644,234.60 : x
  2. Step 2: Convert to fraction form
    149,321,866.60/206,064,132.90 = 80,644,234.60/x
  3. Step 3: Cross multiply
    149,321,866.60x = 206,064,132.90 × 80,644,234.60
  4. Step 4: Simplify right side
    149,321,866.60x = 16,617,884,276,233,178
  5. Step 5: Solve for x
    x = 16,617,884,276,233,178/149,321,866.60
  6. Step 6: Final answer
    x = 111,289,020.52

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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.