Home / 407,998,588.66-612,117,955.47-131,644,618.54

Finding the Fourth Proportional to 407,998,588.66, 612,117,955.47 and 131,644,618.54

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Solution

The fourth proportional to 407,998,588.66, 612,117,955.47 and 131,644,618.54 is: 197,505,670.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,998,588.66 : 612,117,955.47 = 131,644,618.54 : x
  2. Step 2: Convert to fraction form
    407,998,588.66/612,117,955.47 = 131,644,618.54/x
  3. Step 3: Cross multiply
    407,998,588.66x = 612,117,955.47 × 131,644,618.54
  4. Step 4: Simplify right side
    407,998,588.66x = 80,582,034,749,332,864
  5. Step 5: Solve for x
    x = 80,582,034,749,332,864/407,998,588.66
  6. Step 6: Final answer
    x = 197,505,670.34

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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.