Home / 21,405,768.38-29,540,617.53-12,583,601.75

Finding the Fourth Proportional to 21,405,768.38, 29,540,617.53 and 12,583,601.75

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Solution

The fourth proportional to 21,405,768.38, 29,540,617.53 and 12,583,601.75 is: 17,365,756.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,405,768.38 : 29,540,617.53 = 12,583,601.75 : x
  2. Step 2: Convert to fraction form
    21,405,768.38/29,540,617.53 = 12,583,601.75/x
  3. Step 3: Cross multiply
    21,405,768.38x = 29,540,617.53 × 12,583,601.75
  4. Step 4: Simplify right side
    21,405,768.38x = 371,727,366,298,885.56
  5. Step 5: Solve for x
    x = 371,727,366,298,885.56/21,405,768.38
  6. Step 6: Final answer
    x = 17,365,756.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.