Home / 284,505,372.72-426,818,975.68-85,100,319.18

Finding the Fourth Proportional to 284,505,372.72, 426,818,975.68 and 85,100,319.18

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Solution

The fourth proportional to 284,505,372.72, 426,818,975.68 and 85,100,319.18 is: 127,668,699.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,505,372.72 : 426,818,975.68 = 85,100,319.18 : x
  2. Step 2: Convert to fraction form
    284,505,372.72/426,818,975.68 = 85,100,319.18/x
  3. Step 3: Cross multiply
    284,505,372.72x = 426,818,975.68 × 85,100,319.18
  4. Step 4: Simplify right side
    284,505,372.72x = 36,322,431,062,448,664
  5. Step 5: Solve for x
    x = 36,322,431,062,448,664/284,505,372.72
  6. Step 6: Final answer
    x = 127,668,699.94

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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.