Home / 305,910,861.30-422,157,049.02-166,681,622.61

Finding the Fourth Proportional to 305,910,861.30, 422,157,049.02 and 166,681,622.61

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Solution

The fourth proportional to 305,910,861.30, 422,157,049.02 and 166,681,622.61 is: 230,020,672.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,861.30 : 422,157,049.02 = 166,681,622.61 : x
  2. Step 2: Convert to fraction form
    305,910,861.30/422,157,049.02 = 166,681,622.61/x
  3. Step 3: Cross multiply
    305,910,861.30x = 422,157,049.02 × 166,681,622.61
  4. Step 4: Simplify right side
    305,910,861.30x = 70,365,821,926,902,912
  5. Step 5: Solve for x
    x = 70,365,821,926,902,912/305,910,861.30
  6. Step 6: Final answer
    x = 230,020,672.13

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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.