Home / 20,631,097.20-30,935,759.40-6,979,551.60

Finding the Fourth Proportional to 20,631,097.20, 30,935,759.40 and 6,979,551.60

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Solution

The fourth proportional to 20,631,097.20, 30,935,759.40 and 6,979,551.60 is: 10,465,644.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,631,097.20 : 30,935,759.40 = 6,979,551.60 : x
  2. Step 2: Convert to fraction form
    20,631,097.20/30,935,759.40 = 6,979,551.60/x
  3. Step 3: Cross multiply
    20,631,097.20x = 30,935,759.40 × 6,979,551.60
  4. Step 4: Simplify right side
    20,631,097.20x = 215,917,729,017,485.03
  5. Step 5: Solve for x
    x = 215,917,729,017,485.03/20,631,097.20
  6. Step 6: Final answer
    x = 10,465,644.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.