Home / 20,931,043.92-31,401,304.38-7,284,834.60

Finding the Fourth Proportional to 20,931,043.92, 31,401,304.38 and 7,284,834.60

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Solution

The fourth proportional to 20,931,043.92, 31,401,304.38 and 7,284,834.60 is: 10,928,901.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,931,043.92 : 31,401,304.38 = 7,284,834.60 : x
  2. Step 2: Convert to fraction form
    20,931,043.92/31,401,304.38 = 7,284,834.60/x
  3. Step 3: Cross multiply
    20,931,043.92x = 31,401,304.38 × 7,284,834.60
  4. Step 4: Simplify right side
    20,931,043.92x = 228,753,308,632,555.53
  5. Step 5: Solve for x
    x = 228,753,308,632,555.53/20,931,043.92
  6. Step 6: Final answer
    x = 10,928,901.09

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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.