Home / 21,212,644.33-31,805,944.46-8,243,652.15

Finding the Fourth Proportional to 21,212,644.33, 31,805,944.46 and 8,243,652.15

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Solution

The fourth proportional to 21,212,644.33, 31,805,944.46 and 8,243,652.15 is: 12,360,417.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,212,644.33 : 31,805,944.46 = 8,243,652.15 : x
  2. Step 2: Convert to fraction form
    21,212,644.33/31,805,944.46 = 8,243,652.15/x
  3. Step 3: Cross multiply
    21,212,644.33x = 31,805,944.46 × 8,243,652.15
  4. Step 4: Simplify right side
    21,212,644.33x = 262,197,142,309,726.44
  5. Step 5: Solve for x
    x = 262,197,142,309,726.44/21,212,644.33
  6. Step 6: Final answer
    x = 12,360,417.60

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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.