Home / 13,479,569.80-20,219,354.70-8,440,721.80

Finding the Fourth Proportional to 13,479,569.80, 20,219,354.70 and 8,440,721.80

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Solution

The fourth proportional to 13,479,569.80, 20,219,354.70 and 8,440,721.80 is: 12,661,082.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479,569.80 : 20,219,354.70 = 8,440,721.80 : x
  2. Step 2: Convert to fraction form
    13,479,569.80/20,219,354.70 = 8,440,721.80/x
  3. Step 3: Cross multiply
    13,479,569.80x = 20,219,354.70 × 8,440,721.80
  4. Step 4: Simplify right side
    13,479,569.80x = 170,665,947,998,222.47
  5. Step 5: Solve for x
    x = 170,665,947,998,222.47/13,479,569.80
  6. Step 6: Final answer
    x = 12,661,082.70

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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.