Home / 20,707,428.20-31,060,850.70-9,347,858.60

Finding the Fourth Proportional to 20,707,428.20, 31,060,850.70 and 9,347,858.60

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Solution

The fourth proportional to 20,707,428.20, 31,060,850.70 and 9,347,858.60 is: 14,021,656.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,707,428.20 : 31,060,850.70 = 9,347,858.60 : x
  2. Step 2: Convert to fraction form
    20,707,428.20/31,060,850.70 = 9,347,858.60/x
  3. Step 3: Cross multiply
    20,707,428.20x = 31,060,850.70 × 9,347,858.60
  4. Step 4: Simplify right side
    20,707,428.20x = 290,352,440,339,311
  5. Step 5: Solve for x
    x = 290,352,440,339,311/20,707,428.20
  6. Step 6: Final answer
    x = 14,021,656.26

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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.