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Finding the Fourth Proportional to 581,379,494.90, 871,717,988.00 and 231,679,361.30

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Solution

The fourth proportional to 581,379,494.90, 871,717,988.00 and 231,679,361.30 is: 347,379,067.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    581,379,494.90 : 871,717,988.00 = 231,679,361.30 : x
  2. Step 2: Convert to fraction form
    581,379,494.90/871,717,988.00 = 231,679,361.30/x
  3. Step 3: Cross multiply
    581,379,494.90x = 871,717,988.00 × 231,679,361.30
  4. Step 4: Simplify right side
    581,379,494.90x = 201,959,066,689,781,664
  5. Step 5: Solve for x
    x = 201,959,066,689,781,664/581,379,494.90
  6. Step 6: Final answer
    x = 347,379,067.31

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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.