Home / 161,986,997.86-223,541,912.60-91,437,457.88

Finding the Fourth Proportional to 161,986,997.86, 223,541,912.60 and 91,437,457.88

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Solution

The fourth proportional to 161,986,997.86, 223,541,912.60 and 91,437,457.88 is: 126,183,610.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,986,997.86 : 223,541,912.60 = 91,437,457.88 : x
  2. Step 2: Convert to fraction form
    161,986,997.86/223,541,912.60 = 91,437,457.88/x
  3. Step 3: Cross multiply
    161,986,997.86x = 223,541,912.60 × 91,437,457.88
  4. Step 4: Simplify right side
    161,986,997.86x = 20,440,104,217,777,140
  5. Step 5: Solve for x
    x = 20,440,104,217,777,140/161,986,997.86
  6. Step 6: Final answer
    x = 126,183,610.34

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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.