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Finding the Fourth Proportional to 274,295,249.72, 411,483,027.99 and 128,743,595.72

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Solution

The fourth proportional to 274,295,249.72, 411,483,027.99 and 128,743,595.72 is: 193,134,240.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,295,249.72 : 411,483,027.99 = 128,743,595.72 : x
  2. Step 2: Convert to fraction form
    274,295,249.72/411,483,027.99 = 128,743,595.72/x
  3. Step 3: Cross multiply
    274,295,249.72x = 411,483,027.99 × 128,743,595.72
  4. Step 4: Simplify right side
    274,295,249.72x = 52,975,804,601,186,008
  5. Step 5: Solve for x
    x = 52,975,804,601,186,008/274,295,249.72
  6. Step 6: Final answer
    x = 193,134,240.04

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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.