Home / 21,561,229.86-29,754,343.20-11,771,673.78

Finding the Fourth Proportional to 21,561,229.86, 29,754,343.20 and 11,771,673.78

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Solution

The fourth proportional to 21,561,229.86, 29,754,343.20 and 11,771,673.78 is: 16,244,825.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,561,229.86 : 29,754,343.20 = 11,771,673.78 : x
  2. Step 2: Convert to fraction form
    21,561,229.86/29,754,343.20 = 11,771,673.78/x
  3. Step 3: Cross multiply
    21,561,229.86x = 29,754,343.20 × 11,771,673.78
  4. Step 4: Simplify right side
    21,561,229.86x = 350,258,421,688,561.25
  5. Step 5: Solve for x
    x = 350,258,421,688,561.25/21,561,229.86
  6. Step 6: Final answer
    x = 16,244,825.73

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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.