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Finding the Fourth Proportional to 21,064,228.20, 29,529,732.60 and 21,064,228.20

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Solution

The fourth proportional to 21,064,228.20, 29,529,732.60 and 21,064,228.20 is: 29,529,732.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,228.20 : 29,529,732.60 = 21,064,228.20 : x
  2. Step 2: Convert to fraction form
    21,064,228.20/29,529,732.60 = 21,064,228.20/x
  3. Step 3: Cross multiply
    21,064,228.20x = 29,529,732.60 × 21,064,228.20
  4. Step 4: Simplify right side
    21,064,228.20x = 622,021,026,171,379.38
  5. Step 5: Solve for x
    x = 622,021,026,171,379.38/21,064,228.20
  6. Step 6: Final answer
    x = 29,529,732.60

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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.