Home / 71,901,295.70-107,852,730.99-20,783,757.62

Finding the Fourth Proportional to 71,901,295.70, 107,852,730.99 and 20,783,757.62

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Solution

The fourth proportional to 71,901,295.70, 107,852,730.99 and 20,783,757.62 is: 31,175,864.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,901,295.70 : 107,852,730.99 = 20,783,757.62 : x
  2. Step 2: Convert to fraction form
    71,901,295.70/107,852,730.99 = 20,783,757.62/x
  3. Step 3: Cross multiply
    71,901,295.70x = 107,852,730.99 × 20,783,757.62
  4. Step 4: Simplify right side
    71,901,295.70x = 2,241,585,019,551,222.75
  5. Step 5: Solve for x
    x = 2,241,585,019,551,222.75/71,901,295.70
  6. Step 6: Final answer
    x = 31,175,864.05

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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.