Home / 18,864,715.20-28,297,072.80-6,902,116.80

Finding the Fourth Proportional to 18,864,715.20, 28,297,072.80 and 6,902,116.80

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Solution

The fourth proportional to 18,864,715.20, 28,297,072.80 and 6,902,116.80 is: 10,353,175.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,864,715.20 : 28,297,072.80 = 6,902,116.80 : x
  2. Step 2: Convert to fraction form
    18,864,715.20/28,297,072.80 = 6,902,116.80/x
  3. Step 3: Cross multiply
    18,864,715.20x = 28,297,072.80 × 6,902,116.80
  4. Step 4: Simplify right side
    18,864,715.20x = 195,309,701,563,703.03
  5. Step 5: Solve for x
    x = 195,309,701,563,703.03/18,864,715.20
  6. Step 6: Final answer
    x = 10,353,175.20

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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.