Home / 6,897,591-9,518,678.40-3,998,662.56

Finding the Fourth Proportional to 6,897,591, 9,518,678.40 and 3,998,662.56

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Solution

The fourth proportional to 6,897,591, 9,518,678.40 and 3,998,662.56 is: 5,518,155.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,897,591 : 9,518,678.40 = 3,998,662.56 : x
  2. Step 2: Convert to fraction form
    6,897,591/9,518,678.40 = 3,998,662.56/x
  3. Step 3: Cross multiply
    6,897,591x = 9,518,678.40 × 3,998,662.56
  4. Step 4: Simplify right side
    6,897,591x = 38,061,982,938,760.70
  5. Step 5: Solve for x
    x = 38,061,982,938,760.70/6,897,591
  6. Step 6: Final answer
    x = 5,518,155.97

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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.