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Finding the Fourth Proportional to 252,269,867.70, 378,404,801.55 and 88,692,327.90

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Solution

The fourth proportional to 252,269,867.70, 378,404,801.55 and 88,692,327.90 is: 133,038,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,269,867.70 : 378,404,801.55 = 88,692,327.90 : x
  2. Step 2: Convert to fraction form
    252,269,867.70/378,404,801.55 = 88,692,327.90/x
  3. Step 3: Cross multiply
    252,269,867.70x = 378,404,801.55 × 88,692,327.90
  4. Step 4: Simplify right side
    252,269,867.70x = 33,561,602,738,007,032
  5. Step 5: Solve for x
    x = 33,561,602,738,007,032/252,269,867.70
  6. Step 6: Final answer
    x = 133,038,491.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.