Home / 231,129,844.86-318,950,637.60-125,280,987.54

Finding the Fourth Proportional to 231,129,844.86, 318,950,637.60 and 125,280,987.54

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Solution

The fourth proportional to 231,129,844.86, 318,950,637.60 and 125,280,987.54 is: 172,883,129.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,129,844.86 : 318,950,637.60 = 125,280,987.54 : x
  2. Step 2: Convert to fraction form
    231,129,844.86/318,950,637.60 = 125,280,987.54/x
  3. Step 3: Cross multiply
    231,129,844.86x = 318,950,637.60 × 125,280,987.54
  4. Step 4: Simplify right side
    231,129,844.86x = 39,958,450,855,040,664
  5. Step 5: Solve for x
    x = 39,958,450,855,040,664/231,129,844.86
  6. Step 6: Final answer
    x = 172,883,129.30

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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.