Home / 251,297,268.10-376,981,331.55-78,756,090.10

Finding the Fourth Proportional to 251,297,268.10, 376,981,331.55 and 78,756,090.10

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Solution

The fourth proportional to 251,297,268.10, 376,981,331.55 and 78,756,090.10 is: 118,145,238.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,297,268.10 : 376,981,331.55 = 78,756,090.10 : x
  2. Step 2: Convert to fraction form
    251,297,268.10/376,981,331.55 = 78,756,090.10/x
  3. Step 3: Cross multiply
    251,297,268.10x = 376,981,331.55 × 78,756,090.10
  4. Step 4: Simplify right side
    251,297,268.10x = 29,689,575,713,569,772
  5. Step 5: Solve for x
    x = 29,689,575,713,569,772/251,297,268.10
  6. Step 6: Final answer
    x = 118,145,238.66

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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.