Home / 21,257,220.30-31,890,892.14-6,880,290.54

Finding the Fourth Proportional to 21,257,220.30, 31,890,892.14 and 6,880,290.54

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Solution

The fourth proportional to 21,257,220.30, 31,890,892.14 and 6,880,290.54 is: 10,322,074.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,220.30 : 31,890,892.14 = 6,880,290.54 : x
  2. Step 2: Convert to fraction form
    21,257,220.30/31,890,892.14 = 6,880,290.54/x
  3. Step 3: Cross multiply
    21,257,220.30x = 31,890,892.14 × 6,880,290.54
  4. Step 4: Simplify right side
    21,257,220.30x = 219,418,603,503,002.38
  5. Step 5: Solve for x
    x = 219,418,603,503,002.38/21,257,220.30
  6. Step 6: Final answer
    x = 10,322,074.12

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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.