Home / 355,961,146,748.27-491,268,494,789.70-211,445,847,405.69

Finding the Fourth Proportional to 355,961,146,748.27, 491,268,494,789.70 and 211,445,847,405.69

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Solution

The fourth proportional to 355,961,146,748.27, 491,268,494,789.70 and 211,445,847,405.69 is: 291,820,284,695.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,961,146,748.27 : 491,268,494,789.70 = 211,445,847,405.69 : x
  2. Step 2: Convert to fraction form
    355,961,146,748.27/491,268,494,789.70 = 211,445,847,405.69/x
  3. Step 3: Cross multiply
    355,961,146,748.27x = 491,268,494,789.70 × 211,445,847,405.69
  4. Step 4: Simplify right side
    355,961,146,748.27x = 103,876,683,184,525,918,863,360
  5. Step 5: Solve for x
    x = 103,876,683,184,525,918,863,360/355,961,146,748.27
  6. Step 6: Final answer
    x = 291,820,284,695.25

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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.