Home / 419,291,860.12-578,648,654.60-231,119,729.64

Finding the Fourth Proportional to 419,291,860.12, 578,648,654.60 and 231,119,729.64

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Solution

The fourth proportional to 419,291,860.12, 578,648,654.60 and 231,119,729.64 is: 318,959,496.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,291,860.12 : 578,648,654.60 = 231,119,729.64 : x
  2. Step 2: Convert to fraction form
    419,291,860.12/578,648,654.60 = 231,119,729.64/x
  3. Step 3: Cross multiply
    419,291,860.12x = 578,648,654.60 × 231,119,729.64
  4. Step 4: Simplify right side
    419,291,860.12x = 133,737,120,607,701,744
  5. Step 5: Solve for x
    x = 133,737,120,607,701,744/419,291,860.12
  6. Step 6: Final answer
    x = 318,959,496.54

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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.