Home / 30,222,003.70-45,333,005.55-21,781,933.30

Finding the Fourth Proportional to 30,222,003.70, 45,333,005.55 and 21,781,933.30

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Solution

The fourth proportional to 30,222,003.70, 45,333,005.55 and 21,781,933.30 is: 32,672,899.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,222,003.70 : 45,333,005.55 = 21,781,933.30 : x
  2. Step 2: Convert to fraction form
    30,222,003.70/45,333,005.55 = 21,781,933.30/x
  3. Step 3: Cross multiply
    30,222,003.70x = 45,333,005.55 × 21,781,933.30
  4. Step 4: Simplify right side
    30,222,003.70x = 987,440,503,178,629.75
  5. Step 5: Solve for x
    x = 987,440,503,178,629.75/30,222,003.70
  6. Step 6: Final answer
    x = 32,672,899.95

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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.