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Finding the Fourth Proportional to 207,233,403.60, 285,978,187.73 and 126,759,474.43

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Solution

The fourth proportional to 207,233,403.60, 285,978,187.73 and 126,759,474.43 is: 174,925,683.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,233,403.60 : 285,978,187.73 = 126,759,474.43 : x
  2. Step 2: Convert to fraction form
    207,233,403.60/285,978,187.73 = 126,759,474.43/x
  3. Step 3: Cross multiply
    207,233,403.60x = 285,978,187.73 × 126,759,474.43
  4. Step 4: Simplify right side
    207,233,403.60x = 36,250,444,774,391,472
  5. Step 5: Solve for x
    x = 36,250,444,774,391,472/207,233,403.60
  6. Step 6: Final answer
    x = 174,925,683.53

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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.