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Finding the Fourth Proportional to 296,757,796.80, 445,136,695.20 and 143,702,788.80

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Solution

The fourth proportional to 296,757,796.80, 445,136,695.20 and 143,702,788.80 is: 215,554,183.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,757,796.80 : 445,136,695.20 = 143,702,788.80 : x
  2. Step 2: Convert to fraction form
    296,757,796.80/445,136,695.20 = 143,702,788.80/x
  3. Step 3: Cross multiply
    296,757,796.80x = 445,136,695.20 × 143,702,788.80
  4. Step 4: Simplify right side
    296,757,796.80x = 63,967,384,497,455,576
  5. Step 5: Solve for x
    x = 63,967,384,497,455,576/296,757,796.80
  6. Step 6: Final answer
    x = 215,554,183.20

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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.