Home / 13,140,032.92-18,133,049.82-7,338,912.28

Finding the Fourth Proportional to 13,140,032.92, 18,133,049.82 and 7,338,912.28

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Solution

The fourth proportional to 13,140,032.92, 18,133,049.82 and 7,338,912.28 is: 10,127,589.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,140,032.92 : 18,133,049.82 = 7,338,912.28 : x
  2. Step 2: Convert to fraction form
    13,140,032.92/18,133,049.82 = 7,338,912.28/x
  3. Step 3: Cross multiply
    13,140,032.92x = 18,133,049.82 × 7,338,912.28
  4. Step 4: Simplify right side
    13,140,032.92x = 133,076,861,997,849.80
  5. Step 5: Solve for x
    x = 133,076,861,997,849.80/13,140,032.92
  6. Step 6: Final answer
    x = 10,127,589.70

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1.5x scale

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.