Home / 18,175,795.05-25,082,678.52-9,915,832.30

Finding the Fourth Proportional to 18,175,795.05, 25,082,678.52 and 9,915,832.30

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Solution

The fourth proportional to 18,175,795.05, 25,082,678.52 and 9,915,832.30 is: 13,683,892.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,175,795.05 : 25,082,678.52 = 9,915,832.30 : x
  2. Step 2: Convert to fraction form
    18,175,795.05/25,082,678.52 = 9,915,832.30/x
  3. Step 3: Cross multiply
    18,175,795.05x = 25,082,678.52 × 9,915,832.30
  4. Step 4: Simplify right side
    18,175,795.05x = 248,715,633,851,348.75
  5. Step 5: Solve for x
    x = 248,715,633,851,348.75/18,175,795.05
  6. Step 6: Final answer
    x = 13,683,892.96

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1.5x scale

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.