Home / 20,796,212.46-31,209,641.73-9,866,441.82

Finding the Fourth Proportional to 20,796,212.46, 31,209,641.73 and 9,866,441.82

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Solution

The fourth proportional to 20,796,212.46, 31,209,641.73 and 9,866,441.82 is: 14,806,932.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,796,212.46 : 31,209,641.73 = 9,866,441.82 : x
  2. Step 2: Convert to fraction form
    20,796,212.46/31,209,641.73 = 9,866,441.82/x
  3. Step 3: Cross multiply
    20,796,212.46x = 31,209,641.73 × 9,866,441.82
  4. Step 4: Simplify right side
    20,796,212.46x = 307,928,114,352,089.19
  5. Step 5: Solve for x
    x = 307,928,114,352,089.19/20,796,212.46
  6. Step 6: Final answer
    x = 14,806,932.51

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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.