Home / 355,961,146,789.90-491,268,494,847.34-211,445,847,447.32

Finding the Fourth Proportional to 355,961,146,789.90, 491,268,494,847.34 and 211,445,847,447.32

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Solution

The fourth proportional to 355,961,146,789.90, 491,268,494,847.34 and 211,445,847,447.32 is: 291,820,284,752.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,961,146,789.90 : 491,268,494,847.34 = 211,445,847,447.32 : x
  2. Step 2: Convert to fraction form
    355,961,146,789.90/491,268,494,847.34 = 211,445,847,447.32/x
  3. Step 3: Cross multiply
    355,961,146,789.90x = 491,268,494,847.34 × 211,445,847,447.32
  4. Step 4: Simplify right side
    355,961,146,789.90x = 103,876,683,217,165,170,507,776
  5. Step 5: Solve for x
    x = 103,876,683,217,165,170,507,776/355,961,146,789.90
  6. Step 6: Final answer
    x = 291,820,284,752.81

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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.