Home / 20,690,147.70-31,035,221.55-7,225,226.10

Finding the Fourth Proportional to 20,690,147.70, 31,035,221.55 and 7,225,226.10

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Solution

The fourth proportional to 20,690,147.70, 31,035,221.55 and 7,225,226.10 is: 10,837,839.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,690,147.70 : 31,035,221.55 = 7,225,226.10 : x
  2. Step 2: Convert to fraction form
    20,690,147.70/31,035,221.55 = 7,225,226.10/x
  3. Step 3: Cross multiply
    20,690,147.70x = 31,035,221.55 × 7,225,226.10
  4. Step 4: Simplify right side
    20,690,147.70x = 224,236,492,762,342.44
  5. Step 5: Solve for x
    x = 224,236,492,762,342.44/20,690,147.70
  6. Step 6: Final answer
    x = 10,837,839.15

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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.