Home / 3,947,364.09-5,447,678.92-3,138,245.17

Finding the Fourth Proportional to 3,947,364.09, 5,447,678.92 and 3,138,245.17

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Solution

The fourth proportional to 3,947,364.09, 5,447,678.92 and 3,138,245.17 is: 4,331,029.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,947,364.09 : 5,447,678.92 = 3,138,245.17 : x
  2. Step 2: Convert to fraction form
    3,947,364.09/5,447,678.92 = 3,138,245.17/x
  3. Step 3: Cross multiply
    3,947,364.09x = 5,447,678.92 × 3,138,245.17
  4. Step 4: Simplify right side
    3,947,364.09x = 17,096,152,036,936.01
  5. Step 5: Solve for x
    x = 17,096,152,036,936.01/3,947,364.09
  6. Step 6: Final answer
    x = 4,331,029.93

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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.