Home / 7,932,428.42-11,899,701.82-3,138,996.68

Finding the Fourth Proportional to 7,932,428.42, 11,899,701.82 and 3,138,996.68

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Solution

The fourth proportional to 7,932,428.42, 11,899,701.82 and 3,138,996.68 is: 4,708,914.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,932,428.42 : 11,899,701.82 = 3,138,996.68 : x
  2. Step 2: Convert to fraction form
    7,932,428.42/11,899,701.82 = 3,138,996.68/x
  3. Step 3: Cross multiply
    7,932,428.42x = 11,899,701.82 × 3,138,996.68
  4. Step 4: Simplify right side
    7,932,428.42x = 37,353,124,505,969.96
  5. Step 5: Solve for x
    x = 37,353,124,505,969.96/7,932,428.42
  6. Step 6: Final answer
    x = 4,708,914.16

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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.