Home / 728,062,658.01-1,004,731,022.70-393,534,490.64

Finding the Fourth Proportional to 728,062,658.01, 1,004,731,022.70 and 393,534,490.64

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Solution

The fourth proportional to 728,062,658.01, 1,004,731,022.70 and 393,534,490.64 is: 543,080,058.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,062,658.01 : 1,004,731,022.70 = 393,534,490.64 : x
  2. Step 2: Convert to fraction form
    728,062,658.01/1,004,731,022.70 = 393,534,490.64/x
  3. Step 3: Cross multiply
    728,062,658.01x = 1,004,731,022.70 × 393,534,490.64
  4. Step 4: Simplify right side
    728,062,658.01x = 395,396,311,243,427,136
  5. Step 5: Solve for x
    x = 395,396,311,243,427,136/728,062,658.01
  6. Step 6: Final answer
    x = 543,080,058.97

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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.