Home / 7,121,470.56-9,827,638.89-3,858,285.45

Finding the Fourth Proportional to 7,121,470.56, 9,827,638.89 and 3,858,285.45

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Solution

The fourth proportional to 7,121,470.56, 9,827,638.89 and 3,858,285.45 is: 5,324,439.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,121,470.56 : 9,827,638.89 = 3,858,285.45 : x
  2. Step 2: Convert to fraction form
    7,121,470.56/9,827,638.89 = 3,858,285.45/x
  3. Step 3: Cross multiply
    7,121,470.56x = 9,827,638.89 × 3,858,285.45
  4. Step 4: Simplify right side
    7,121,470.56x = 37,917,836,137,141.16
  5. Step 5: Solve for x
    x = 37,917,836,137,141.16/7,121,470.56
  6. Step 6: Final answer
    x = 5,324,439.08

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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.