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Finding the Fourth Proportional to 21,055,682.70, 29,541,728.70 and 21,055,682.70

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Solution

The fourth proportional to 21,055,682.70, 29,541,728.70 and 21,055,682.70 is: 29,541,728.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,055,682.70 : 29,541,728.70 = 21,055,682.70 : x
  2. Step 2: Convert to fraction form
    21,055,682.70/29,541,728.70 = 21,055,682.70/x
  3. Step 3: Cross multiply
    21,055,682.70x = 29,541,728.70 × 21,055,682.70
  4. Step 4: Simplify right side
    21,055,682.70x = 622,021,265,916,683.50
  5. Step 5: Solve for x
    x = 622,021,265,916,683.50/21,055,682.70
  6. Step 6: Final answer
    x = 29,541,728.70

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.