Home / 511,251,213.80-766,876,820.70-347,992,538.60

Finding the Fourth Proportional to 511,251,213.80, 766,876,820.70 and 347,992,538.60

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Solution

The fourth proportional to 511,251,213.80, 766,876,820.70 and 347,992,538.60 is: 521,988,807.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,251,213.80 : 766,876,820.70 = 347,992,538.60 : x
  2. Step 2: Convert to fraction form
    511,251,213.80/766,876,820.70 = 347,992,538.60/x
  3. Step 3: Cross multiply
    511,251,213.80x = 766,876,820.70 × 347,992,538.60
  4. Step 4: Simplify right side
    511,251,213.80x = 266,867,411,628,890,048
  5. Step 5: Solve for x
    x = 266,867,411,628,890,048/511,251,213.80
  6. Step 6: Final answer
    x = 521,988,807.90

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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.