Home / 20,915,507.52-31,378,304.88-7,266,667.68

Finding the Fourth Proportional to 20,915,507.52, 31,378,304.88 and 7,266,667.68

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Solution

The fourth proportional to 20,915,507.52, 31,378,304.88 and 7,266,667.68 is: 10,901,753.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,915,507.52 : 31,378,304.88 = 7,266,667.68 : x
  2. Step 2: Convert to fraction form
    20,915,507.52/31,378,304.88 = 7,266,667.68/x
  3. Step 3: Cross multiply
    20,915,507.52x = 31,378,304.88 × 7,266,667.68
  4. Step 4: Simplify right side
    20,915,507.52x = 228,015,713,924,682.25
  5. Step 5: Solve for x
    x = 228,015,713,924,682.25/20,915,507.52
  6. Step 6: Final answer
    x = 10,901,753.82

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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.