Home / 21,246,460.20-31,869,690.30-19,474,990.20

Finding the Fourth Proportional to 21,246,460.20, 31,869,690.30 and 19,474,990.20

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Solution

The fourth proportional to 21,246,460.20, 31,869,690.30 and 19,474,990.20 is: 29,212,485.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,246,460.20 : 31,869,690.30 = 19,474,990.20 : x
  2. Step 2: Convert to fraction form
    21,246,460.20/31,869,690.30 = 19,474,990.20/x
  3. Step 3: Cross multiply
    21,246,460.20x = 31,869,690.30 × 19,474,990.20
  4. Step 4: Simplify right side
    21,246,460.20x = 620,661,906,269,535
  5. Step 5: Solve for x
    x = 620,661,906,269,535/21,246,460.20
  6. Step 6: Final answer
    x = 29,212,485.30

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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.