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Finding the Fourth Proportional to 484,652,021.80, 726,978,032.70 and 291,160,258.60

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Solution

The fourth proportional to 484,652,021.80, 726,978,032.70 and 291,160,258.60 is: 436,740,387.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,652,021.80 : 726,978,032.70 = 291,160,258.60 : x
  2. Step 2: Convert to fraction form
    484,652,021.80/726,978,032.70 = 291,160,258.60/x
  3. Step 3: Cross multiply
    484,652,021.80x = 726,978,032.70 × 291,160,258.60
  4. Step 4: Simplify right side
    484,652,021.80x = 211,667,111,997,451,296
  5. Step 5: Solve for x
    x = 211,667,111,997,451,296/484,652,021.80
  6. Step 6: Final answer
    x = 436,740,387.90

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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.