Home / 78,187,670.33-107,899,001.40-43,380,277.73

Finding the Fourth Proportional to 78,187,670.33, 107,899,001.40 and 43,380,277.73

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Solution

The fourth proportional to 78,187,670.33, 107,899,001.40 and 43,380,277.73 is: 59,864,792.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,187,670.33 : 107,899,001.40 = 43,380,277.73 : x
  2. Step 2: Convert to fraction form
    78,187,670.33/107,899,001.40 = 43,380,277.73/x
  3. Step 3: Cross multiply
    78,187,670.33x = 107,899,001.40 × 43,380,277.73
  4. Step 4: Simplify right side
    78,187,670.33x = 4,680,688,646,982,164
  5. Step 5: Solve for x
    x = 4,680,688,646,982,164/78,187,670.33
  6. Step 6: Final answer
    x = 59,864,792.33

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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.