Home / 31,180,181-43,007,299.98-20,329,861.64

Finding the Fourth Proportional to 31,180,181, 43,007,299.98 and 20,329,861.64

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Solution

The fourth proportional to 31,180,181, 43,007,299.98 and 20,329,861.64 is: 28,041,288.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,180,181 : 43,007,299.98 = 20,329,861.64 : x
  2. Step 2: Convert to fraction form
    31,180,181/43,007,299.98 = 20,329,861.64/x
  3. Step 3: Cross multiply
    31,180,181x = 43,007,299.98 × 20,329,861.64
  4. Step 4: Simplify right side
    31,180,181x = 874,332,458,103,374.75
  5. Step 5: Solve for x
    x = 874,332,458,103,374.75/31,180,181
  6. Step 6: Final answer
    x = 28,041,288.73

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.