Home / 72,171,011.20-108,256,516.80-44,908,087.90

Finding the Fourth Proportional to 72,171,011.20, 108,256,516.80 and 44,908,087.90

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Solution

The fourth proportional to 72,171,011.20, 108,256,516.80 and 44,908,087.90 is: 67,362,131.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,171,011.20 : 108,256,516.80 = 44,908,087.90 : x
  2. Step 2: Convert to fraction form
    72,171,011.20/108,256,516.80 = 44,908,087.90/x
  3. Step 3: Cross multiply
    72,171,011.20x = 108,256,516.80 × 44,908,087.90
  4. Step 4: Simplify right side
    72,171,011.20x = 4,861,593,172,202,226
  5. Step 5: Solve for x
    x = 4,861,593,172,202,226/72,171,011.20
  6. Step 6: Final answer
    x = 67,362,131.85

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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.