Home / 21,561,223.89-29,754,334.91-11,771,667.76

Finding the Fourth Proportional to 21,561,223.89, 29,754,334.91 and 11,771,667.76

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Solution

The fourth proportional to 21,561,223.89, 29,754,334.91 and 11,771,667.76 is: 16,244,817.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561,223.89 : 29,754,334.91 = 11,771,667.76 : x
  2. Step 2: Convert to fraction form
    21,561,223.89/29,754,334.91 = 11,771,667.76/x
  3. Step 3: Cross multiply
    21,561,223.89x = 29,754,334.91 × 11,771,667.76
  4. Step 4: Simplify right side
    21,561,223.89x = 350,258,144,824,656.69
  5. Step 5: Solve for x
    x = 350,258,144,824,656.69/21,561,223.89
  6. Step 6: Final answer
    x = 16,244,817.39

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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.