Home / 13,665,047.61-18,857,769.84-7,470,121.44

Finding the Fourth Proportional to 13,665,047.61, 18,857,769.84 and 7,470,121.44

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Solution

The fourth proportional to 13,665,047.61, 18,857,769.84 and 7,470,121.44 is: 10,308,769.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,665,047.61 : 18,857,769.84 = 7,470,121.44 : x
  2. Step 2: Convert to fraction form
    13,665,047.61/18,857,769.84 = 7,470,121.44/x
  3. Step 3: Cross multiply
    13,665,047.61x = 18,857,769.84 × 7,470,121.44
  4. Step 4: Simplify right side
    13,665,047.61x = 140,869,830,792,369.38
  5. Step 5: Solve for x
    x = 140,869,830,792,369.38/13,665,047.61
  6. Step 6: Final answer
    x = 10,308,769.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.