Home / 15,406,147.12-21,260,223.21-8,530,481.56

Finding the Fourth Proportional to 15,406,147.12, 21,260,223.21 and 8,530,481.56

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Solution

The fourth proportional to 15,406,147.12, 21,260,223.21 and 8,530,481.56 is: 11,771,920.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,147.12 : 21,260,223.21 = 8,530,481.56 : x
  2. Step 2: Convert to fraction form
    15,406,147.12/21,260,223.21 = 8,530,481.56/x
  3. Step 3: Cross multiply
    15,406,147.12x = 21,260,223.21 × 8,530,481.56
  4. Step 4: Simplify right side
    15,406,147.12x = 181,359,942,054,389.03
  5. Step 5: Solve for x
    x = 181,359,942,054,389.03/15,406,147.12
  6. Step 6: Final answer
    x = 11,771,920.69

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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.