Home / 21,457,187.47-29,611,072.74-11,667,561.49

Finding the Fourth Proportional to 21,457,187.47, 29,611,072.74 and 11,667,561.49

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Solution

The fourth proportional to 21,457,187.47, 29,611,072.74 and 11,667,561.49 is: 16,101,318.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,457,187.47 : 29,611,072.74 = 11,667,561.49 : x
  2. Step 2: Convert to fraction form
    21,457,187.47/29,611,072.74 = 11,667,561.49/x
  3. Step 3: Cross multiply
    21,457,187.47x = 29,611,072.74 × 11,667,561.49
  4. Step 4: Simplify right side
    21,457,187.47x = 345,489,011,978,812.75
  5. Step 5: Solve for x
    x = 345,489,011,978,812.75/21,457,187.47
  6. Step 6: Final answer
    x = 16,101,318.61

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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.