Home / 15,406,146.12-21,260,221.83-8,530,480.56

Finding the Fourth Proportional to 15,406,146.12, 21,260,221.83 and 8,530,480.56

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Solution

The fourth proportional to 15,406,146.12, 21,260,221.83 and 8,530,480.56 is: 11,771,919.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,146.12 : 21,260,221.83 = 8,530,480.56 : x
  2. Step 2: Convert to fraction form
    15,406,146.12/21,260,221.83 = 8,530,480.56/x
  3. Step 3: Cross multiply
    15,406,146.12x = 21,260,221.83 × 8,530,480.56
  4. Step 4: Simplify right side
    15,406,146.12x = 181,359,909,022,102.62
  5. Step 5: Solve for x
    x = 181,359,909,022,102.62/15,406,146.12
  6. Step 6: Final answer
    x = 11,771,919.31

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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.