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Finding the Fourth Proportional to 1,978,887,273.06, 2,968,329,204.12 and 505,026,963.56

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Solution

The fourth proportional to 1,978,887,273.06, 2,968,329,204.12 and 505,026,963.56 is: 757,540,010.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,978,887,273.06 : 2,968,329,204.12 = 505,026,963.56 : x
  2. Step 2: Convert to fraction form
    1,978,887,273.06/2,968,329,204.12 = 505,026,963.56/x
  3. Step 3: Cross multiply
    1,978,887,273.06x = 2,968,329,204.12 × 505,026,963.56
  4. Step 4: Simplify right side
    1,978,887,273.06x = 1,499,086,284,803,194,880
  5. Step 5: Solve for x
    x = 1,499,086,284,803,194,880/1,978,887,273.06
  6. Step 6: Final answer
    x = 757,540,010.09

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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.