Home / 66,784,144.72-100,171,318.22-21,333,735.76

Finding the Fourth Proportional to 66,784,144.72, 100,171,318.22 and 21,333,735.76

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Solution

The fourth proportional to 66,784,144.72, 100,171,318.22 and 21,333,735.76 is: 31,999,038.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,784,144.72 : 100,171,318.22 = 21,333,735.76 : x
  2. Step 2: Convert to fraction form
    66,784,144.72/100,171,318.22 = 21,333,735.76/x
  3. Step 3: Cross multiply
    66,784,144.72x = 100,171,318.22 × 21,333,735.76
  4. Step 4: Simplify right side
    66,784,144.72x = 2,137,028,433,636,353.75
  5. Step 5: Solve for x
    x = 2,137,028,433,636,353.75/66,784,144.72
  6. Step 6: Final answer
    x = 31,999,038.73

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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.