Home / 7,121,423.07-9,827,550.54-3,858,318.90

Finding the Fourth Proportional to 7,121,423.07, 9,827,550.54 and 3,858,318.90

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Solution

The fourth proportional to 7,121,423.07, 9,827,550.54 and 3,858,318.90 is: 5,324,472.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,423.07 : 9,827,550.54 = 3,858,318.90 : x
  2. Step 2: Convert to fraction form
    7,121,423.07/9,827,550.54 = 3,858,318.90/x
  3. Step 3: Cross multiply
    7,121,423.07x = 9,827,550.54 × 3,858,318.90
  4. Step 4: Simplify right side
    7,121,423.07x = 37,917,823,989,187.20
  5. Step 5: Solve for x
    x = 37,917,823,989,187.20/7,121,423.07
  6. Step 6: Final answer
    x = 5,324,472.88

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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.