Home / 21,257,238.48-31,890,919.44-6,880,308.72

Finding the Fourth Proportional to 21,257,238.48, 31,890,919.44 and 6,880,308.72

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Solution

The fourth proportional to 21,257,238.48, 31,890,919.44 and 6,880,308.72 is: 10,322,101.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,257,238.48 : 31,890,919.44 = 6,880,308.72 : x
  2. Step 2: Convert to fraction form
    21,257,238.48/31,890,919.44 = 6,880,308.72/x
  3. Step 3: Cross multiply
    21,257,238.48x = 31,890,919.44 × 6,880,308.72
  4. Step 4: Simplify right side
    21,257,238.48x = 219,419,371,111,849.53
  5. Step 5: Solve for x
    x = 219,419,371,111,849.53/21,257,238.48
  6. Step 6: Final answer
    x = 10,322,101.40

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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.