Home / 72,439,333.62-108,647,188.83-21,309,394.74

Finding the Fourth Proportional to 72,439,333.62, 108,647,188.83 and 21,309,394.74

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Solution

The fourth proportional to 72,439,333.62, 108,647,188.83 and 21,309,394.74 is: 31,960,617.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,439,333.62 : 108,647,188.83 = 21,309,394.74 : x
  2. Step 2: Convert to fraction form
    72,439,333.62/108,647,188.83 = 21,309,394.74/x
  3. Step 3: Cross multiply
    72,439,333.62x = 108,647,188.83 × 21,309,394.74
  4. Step 4: Simplify right side
    72,439,333.62x = 2,315,205,834,169,788.50
  5. Step 5: Solve for x
    x = 2,315,205,834,169,788.50/72,439,333.62
  6. Step 6: Final answer
    x = 31,960,617.51

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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.