Home / 1,193,662,085.76-1,647,215,047.85-685,108,505.90

Finding the Fourth Proportional to 1,193,662,085.76, 1,647,215,047.85 and 685,108,505.90

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Solution

The fourth proportional to 1,193,662,085.76, 1,647,215,047.85 and 685,108,505.90 is: 945,427,565.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,193,662,085.76 : 1,647,215,047.85 = 685,108,505.90 : x
  2. Step 2: Convert to fraction form
    1,193,662,085.76/1,647,215,047.85 = 685,108,505.90/x
  3. Step 3: Cross multiply
    1,193,662,085.76x = 1,647,215,047.85 × 685,108,505.90
  4. Step 4: Simplify right side
    1,193,662,085.76x = 1,128,521,040,329,203,072
  5. Step 5: Solve for x
    x = 1,128,521,040,329,203,072/1,193,662,085.76
  6. Step 6: Final answer
    x = 945,427,565.97

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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.