Home / 358,996,968.96-495,455,182.30-208,322,816.64

Finding the Fourth Proportional to 358,996,968.96, 495,455,182.30 and 208,322,816.64

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Solution

The fourth proportional to 358,996,968.96, 495,455,182.30 and 208,322,816.64 is: 287,508,330.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,996,968.96 : 495,455,182.30 = 208,322,816.64 : x
  2. Step 2: Convert to fraction form
    358,996,968.96/495,455,182.30 = 208,322,816.64/x
  3. Step 3: Cross multiply
    358,996,968.96x = 495,455,182.30 × 208,322,816.64
  4. Step 4: Simplify right side
    358,996,968.96x = 103,214,619,095,620,672
  5. Step 5: Solve for x
    x = 103,214,619,095,620,672/358,996,968.96
  6. Step 6: Final answer
    x = 287,508,330.21

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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.