Home / 121,864,416.54-182,790,186.82-39,972,507.72

Finding the Fourth Proportional to 121,864,416.54, 182,790,186.82 and 39,972,507.72

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Solution

The fourth proportional to 121,864,416.54, 182,790,186.82 and 39,972,507.72 is: 59,956,649.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,864,416.54 : 182,790,186.82 = 39,972,507.72 : x
  2. Step 2: Convert to fraction form
    121,864,416.54/182,790,186.82 = 39,972,507.72/x
  3. Step 3: Cross multiply
    121,864,416.54x = 182,790,186.82 × 39,972,507.72
  4. Step 4: Simplify right side
    121,864,416.54x = 7,306,582,153,802,692
  5. Step 5: Solve for x
    x = 7,306,582,153,802,692/121,864,416.54
  6. Step 6: Final answer
    x = 59,956,649.87

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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.