Home / 12,887,236.50-17,783,931.14-7,085,977.62

Finding the Fourth Proportional to 12,887,236.50, 17,783,931.14 and 7,085,977.62

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Solution

The fourth proportional to 12,887,236.50, 17,783,931.14 and 7,085,977.62 is: 9,778,398.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887,236.50 : 17,783,931.14 = 7,085,977.62 : x
  2. Step 2: Convert to fraction form
    12,887,236.50/17,783,931.14 = 7,085,977.62/x
  3. Step 3: Cross multiply
    12,887,236.50x = 17,783,931.14 × 7,085,977.62
  4. Step 4: Simplify right side
    12,887,236.50x = 126,016,538,053,661.09
  5. Step 5: Solve for x
    x = 126,016,538,053,661.09/12,887,236.50
  6. Step 6: Final answer
    x = 9,778,398.81

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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.