Home / 21,014,972.20-31,522,458.30-13,456,700.20

Finding the Fourth Proportional to 21,014,972.20, 31,522,458.30 and 13,456,700.20

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Solution

The fourth proportional to 21,014,972.20, 31,522,458.30 and 13,456,700.20 is: 20,185,050.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,014,972.20 : 31,522,458.30 = 13,456,700.20 : x
  2. Step 2: Convert to fraction form
    21,014,972.20/31,522,458.30 = 13,456,700.20/x
  3. Step 3: Cross multiply
    21,014,972.20x = 31,522,458.30 × 13,456,700.20
  4. Step 4: Simplify right side
    21,014,972.20x = 424,188,270,910,101.62
  5. Step 5: Solve for x
    x = 424,188,270,910,101.62/21,014,972.20
  6. Step 6: Final answer
    x = 20,185,050.30

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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.