Home / 5,420,419.40-8,123,404.59-2,861,032.67

Finding the Fourth Proportional to 5,420,419.40, 8,123,404.59 and 2,861,032.67

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Solution

The fourth proportional to 5,420,419.40, 8,123,404.59 and 2,861,032.67 is: 4,287,735.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,420,419.40 : 8,123,404.59 = 2,861,032.67 : x
  2. Step 2: Convert to fraction form
    5,420,419.40/8,123,404.59 = 2,861,032.67/x
  3. Step 3: Cross multiply
    5,420,419.40x = 8,123,404.59 × 2,861,032.67
  4. Step 4: Simplify right side
    5,420,419.40x = 23,241,325,883,000.93
  5. Step 5: Solve for x
    x = 23,241,325,883,000.93/5,420,419.40
  6. Step 6: Final answer
    x = 4,287,735.72

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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.