Home / 619,431,300.78-929,146,950.99-231,284,443.38

Finding the Fourth Proportional to 619,431,300.78, 929,146,950.99 and 231,284,443.38

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Solution

The fourth proportional to 619,431,300.78, 929,146,950.99 and 231,284,443.38 is: 346,926,665.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    619,431,300.78 : 929,146,950.99 = 231,284,443.38 : x
  2. Step 2: Convert to fraction form
    619,431,300.78/929,146,950.99 = 231,284,443.38/x
  3. Step 3: Cross multiply
    619,431,300.78x = 929,146,950.99 × 231,284,443.38
  4. Step 4: Simplify right side
    619,431,300.78x = 214,897,235,377,946,272
  5. Step 5: Solve for x
    x = 214,897,235,377,946,272/619,431,300.78
  6. Step 6: Final answer
    x = 346,926,665.00

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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.