Home / 212,848,901.20-319,273,351.80-208,544,229.10

Finding the Fourth Proportional to 212,848,901.20, 319,273,351.80 and 208,544,229.10

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Solution

The fourth proportional to 212,848,901.20, 319,273,351.80 and 208,544,229.10 is: 312,816,343.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,848,901.20 : 319,273,351.80 = 208,544,229.10 : x
  2. Step 2: Convert to fraction form
    212,848,901.20/319,273,351.80 = 208,544,229.10/x
  3. Step 3: Cross multiply
    212,848,901.20x = 319,273,351.80 × 208,544,229.10
  4. Step 4: Simplify right side
    212,848,901.20x = 66,582,615,023,304,096
  5. Step 5: Solve for x
    x = 66,582,615,023,304,096/212,848,901.20
  6. Step 6: Final answer
    x = 312,816,343.65

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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.