Home / 21,419,455.20-32,081,943.60-11,310,266.40

Finding the Fourth Proportional to 21,419,455.20, 32,081,943.60 and 11,310,266.40

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Solution

The fourth proportional to 21,419,455.20, 32,081,943.60 and 11,310,266.40 is: 16,940,455.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,419,455.20 : 32,081,943.60 = 11,310,266.40 : x
  2. Step 2: Convert to fraction form
    21,419,455.20/32,081,943.60 = 11,310,266.40/x
  3. Step 3: Cross multiply
    21,419,455.20x = 32,081,943.60 × 11,310,266.40
  4. Step 4: Simplify right side
    21,419,455.20x = 362,855,328,745,775.06
  5. Step 5: Solve for x
    x = 362,855,328,745,775.06/21,419,455.20
  6. Step 6: Final answer
    x = 16,940,455.55

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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.