Home / 20,796,211.46-31,209,640.23-9,866,440.82

Finding the Fourth Proportional to 20,796,211.46, 31,209,640.23 and 9,866,440.82

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Solution

The fourth proportional to 20,796,211.46, 31,209,640.23 and 9,866,440.82 is: 14,806,931.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,211.46 : 31,209,640.23 = 9,866,440.82 : x
  2. Step 2: Convert to fraction form
    20,796,211.46/31,209,640.23 = 9,866,440.82/x
  3. Step 3: Cross multiply
    20,796,211.46x = 31,209,640.23 × 9,866,440.82
  4. Step 4: Simplify right side
    20,796,211.46x = 307,928,068,342,786.19
  5. Step 5: Solve for x
    x = 307,928,068,342,786.19/20,796,211.46
  6. Step 6: Final answer
    x = 14,806,931.01

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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.