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Finding the Fourth Proportional to 54,402,380.90, 81,603,571.35 and 54,402,380.90

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Solution

The fourth proportional to 54,402,380.90, 81,603,571.35 and 54,402,380.90 is: 81,603,571.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,402,380.90 : 81,603,571.35 = 54,402,380.90 : x
  2. Step 2: Convert to fraction form
    54,402,380.90/81,603,571.35 = 54,402,380.90/x
  3. Step 3: Cross multiply
    54,402,380.90x = 81,603,571.35 × 54,402,380.90
  4. Step 4: Simplify right side
    54,402,380.90x = 4,439,428,571,383,027
  5. Step 5: Solve for x
    x = 4,439,428,571,383,027/54,402,380.90
  6. Step 6: Final answer
    x = 81,603,571.35

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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.