Home / 133,058,958.60-199,588,437.90-81,998,632.20

Finding the Fourth Proportional to 133,058,958.60, 199,588,437.90 and 81,998,632.20

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Solution

The fourth proportional to 133,058,958.60, 199,588,437.90 and 81,998,632.20 is: 122,997,948.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,058,958.60 : 199,588,437.90 = 81,998,632.20 : x
  2. Step 2: Convert to fraction form
    133,058,958.60/199,588,437.90 = 81,998,632.20/x
  3. Step 3: Cross multiply
    133,058,958.60x = 199,588,437.90 × 81,998,632.20
  4. Step 4: Simplify right side
    133,058,958.60x = 16,365,978,910,734,642
  5. Step 5: Solve for x
    x = 16,365,978,910,734,642/133,058,958.60
  6. Step 6: Final answer
    x = 122,997,948.30

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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.