Home / 13,457,728.56-20,083,605.63-12,021,656.88

Finding the Fourth Proportional to 13,457,728.56, 20,083,605.63 and 12,021,656.88

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Solution

The fourth proportional to 13,457,728.56, 20,083,605.63 and 12,021,656.88 is: 17,940,487.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,457,728.56 : 20,083,605.63 = 12,021,656.88 : x
  2. Step 2: Convert to fraction form
    13,457,728.56/20,083,605.63 = 12,021,656.88/x
  3. Step 3: Cross multiply
    13,457,728.56x = 20,083,605.63 × 12,021,656.88
  4. Step 4: Simplify right side
    13,457,728.56x = 241,438,215,797,096.25
  5. Step 5: Solve for x
    x = 241,438,215,797,096.25/13,457,728.56
  6. Step 6: Final answer
    x = 17,940,487.86

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.