Home / 13,991,672.94-20,999,472.30-5,477,988.12

Finding the Fourth Proportional to 13,991,672.94, 20,999,472.30 and 5,477,988.12

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Solution

The fourth proportional to 13,991,672.94, 20,999,472.30 and 5,477,988.12 is: 8,221,665.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991,672.94 : 20,999,472.30 = 5,477,988.12 : x
  2. Step 2: Convert to fraction form
    13,991,672.94/20,999,472.30 = 5,477,988.12/x
  3. Step 3: Cross multiply
    13,991,672.94x = 20,999,472.30 × 5,477,988.12
  4. Step 4: Simplify right side
    13,991,672.94x = 115,034,859,785,669.08
  5. Step 5: Solve for x
    x = 115,034,859,785,669.08/13,991,672.94
  6. Step 6: Final answer
    x = 8,221,665.86

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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.