Home / 212,848,901.70-319,273,352.55-208,544,229.60

Finding the Fourth Proportional to 212,848,901.70, 319,273,352.55 and 208,544,229.60

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Solution

The fourth proportional to 212,848,901.70, 319,273,352.55 and 208,544,229.60 is: 312,816,344.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,848,901.70 : 319,273,352.55 = 208,544,229.60 : x
  2. Step 2: Convert to fraction form
    212,848,901.70/319,273,352.55 = 208,544,229.60/x
  3. Step 3: Cross multiply
    212,848,901.70x = 319,273,352.55 × 208,544,229.60
  4. Step 4: Simplify right side
    212,848,901.70x = 66,582,615,339,348,944
  5. Step 5: Solve for x
    x = 66,582,615,339,348,944/212,848,901.70
  6. Step 6: Final answer
    x = 312,816,344.40

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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.