Home / 358,996,964.96-495,455,176.78-208,322,812.64

Finding the Fourth Proportional to 358,996,964.96, 495,455,176.78 and 208,322,812.64

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Solution

The fourth proportional to 358,996,964.96, 495,455,176.78 and 208,322,812.64 is: 287,508,324.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,996,964.96 : 495,455,176.78 = 208,322,812.64 : x
  2. Step 2: Convert to fraction form
    358,996,964.96/495,455,176.78 = 208,322,812.64/x
  3. Step 3: Cross multiply
    358,996,964.96x = 495,455,176.78 × 208,322,812.64
  4. Step 4: Simplify right side
    358,996,964.96x = 103,214,615,963,858,000
  5. Step 5: Solve for x
    x = 103,214,615,963,858,000/358,996,964.96
  6. Step 6: Final answer
    x = 287,508,324.69

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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.