Home / 202,146,349.87-278,961,960.66-109,326,857.72

Finding the Fourth Proportional to 202,146,349.87, 278,961,960.66 and 109,326,857.72

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Solution

The fourth proportional to 202,146,349.87, 278,961,960.66 and 109,326,857.72 is: 150,871,062.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,146,349.87 : 278,961,960.66 = 109,326,857.72 : x
  2. Step 2: Convert to fraction form
    202,146,349.87/278,961,960.66 = 109,326,857.72/x
  3. Step 3: Cross multiply
    202,146,349.87x = 278,961,960.66 × 109,326,857.72
  4. Step 4: Simplify right side
    202,146,349.87x = 30,498,034,580,563,272
  5. Step 5: Solve for x
    x = 30,498,034,580,563,272/202,146,349.87
  6. Step 6: Final answer
    x = 150,871,062.48

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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.