Home / 419,665,591.48-579,139,074.09-231,489,640.60

Finding the Fourth Proportional to 419,665,591.48, 579,139,074.09 and 231,489,640.60

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Solution

The fourth proportional to 419,665,591.48, 579,139,074.09 and 231,489,640.60 is: 319,456,011.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,665,591.48 : 579,139,074.09 = 231,489,640.60 : x
  2. Step 2: Convert to fraction form
    419,665,591.48/579,139,074.09 = 231,489,640.60/x
  3. Step 3: Cross multiply
    419,665,591.48x = 579,139,074.09 × 231,489,640.60
  4. Step 4: Simplify right side
    419,665,591.48x = 134,064,696,118,510,880
  5. Step 5: Solve for x
    x = 134,064,696,118,510,880/419,665,591.48
  6. Step 6: Final answer
    x = 319,456,011.74

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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.