Home / 490,005,243-676,198,684.02-266,988,770.61

Finding the Fourth Proportional to 490,005,243, 676,198,684.02 and 266,988,770.61

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Solution

The fourth proportional to 490,005,243, 676,198,684.02 and 266,988,770.61 is: 368,439,844.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,005,243 : 676,198,684.02 = 266,988,770.61 : x
  2. Step 2: Convert to fraction form
    490,005,243/676,198,684.02 = 266,988,770.61/x
  3. Step 3: Cross multiply
    490,005,243x = 676,198,684.02 × 266,988,770.61
  4. Step 4: Simplify right side
    490,005,243x = 180,537,455,334,599,648
  5. Step 5: Solve for x
    x = 180,537,455,334,599,648/490,005,243
  6. Step 6: Final answer
    x = 368,439,844.09

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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.