Home / 490,005,244-676,198,685.40-266,988,771.61

Finding the Fourth Proportional to 490,005,244, 676,198,685.40 and 266,988,771.61

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Solution

The fourth proportional to 490,005,244, 676,198,685.40 and 266,988,771.61 is: 368,439,845.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,005,244 : 676,198,685.40 = 266,988,771.61 : x
  2. Step 2: Convert to fraction form
    490,005,244/676,198,685.40 = 266,988,771.61/x
  3. Step 3: Cross multiply
    490,005,244x = 676,198,685.40 × 266,988,771.61
  4. Step 4: Simplify right side
    490,005,244x = 180,537,456,379,242,848
  5. Step 5: Solve for x
    x = 180,537,456,379,242,848/490,005,244
  6. Step 6: Final answer
    x = 368,439,845.47

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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.