Home / 20,690,164.20-31,035,246.30-7,225,242.60

Finding the Fourth Proportional to 20,690,164.20, 31,035,246.30 and 7,225,242.60

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Solution

The fourth proportional to 20,690,164.20, 31,035,246.30 and 7,225,242.60 is: 10,837,863.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,164.20 : 31,035,246.30 = 7,225,242.60 : x
  2. Step 2: Convert to fraction form
    20,690,164.20/31,035,246.30 = 7,225,242.60/x
  3. Step 3: Cross multiply
    20,690,164.20x = 31,035,246.30 × 7,225,242.60
  4. Step 4: Simplify right side
    20,690,164.20x = 224,237,183,668,252.38
  5. Step 5: Solve for x
    x = 224,237,183,668,252.38/20,690,164.20
  6. Step 6: Final answer
    x = 10,837,863.90

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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.