Home / 319,193,999.60-478,790,999.40-125,040,887.60

Finding the Fourth Proportional to 319,193,999.60, 478,790,999.40 and 125,040,887.60

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Solution

The fourth proportional to 319,193,999.60, 478,790,999.40 and 125,040,887.60 is: 187,561,331.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,193,999.60 : 478,790,999.40 = 125,040,887.60 : x
  2. Step 2: Convert to fraction form
    319,193,999.60/478,790,999.40 = 125,040,887.60/x
  3. Step 3: Cross multiply
    319,193,999.60x = 478,790,999.40 × 125,040,887.60
  4. Step 4: Simplify right side
    319,193,999.60x = 59,868,451,539,867,064
  5. Step 5: Solve for x
    x = 59,868,451,539,867,064/319,193,999.60
  6. Step 6: Final answer
    x = 187,561,331.40

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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.