Home / 427,862,597.36-641,854,835.06-132,783,211.60

Finding the Fourth Proportional to 427,862,597.36, 641,854,835.06 and 132,783,211.60

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Solution

The fourth proportional to 427,862,597.36, 641,854,835.06 and 132,783,211.60 is: 199,193,729.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,862,597.36 : 641,854,835.06 = 132,783,211.60 : x
  2. Step 2: Convert to fraction form
    427,862,597.36/641,854,835.06 = 132,783,211.60/x
  3. Step 3: Cross multiply
    427,862,597.36x = 641,854,835.06 × 132,783,211.60
  4. Step 4: Simplify right side
    427,862,597.36x = 85,227,546,380,255,072
  5. Step 5: Solve for x
    x = 85,227,546,380,255,072/427,862,597.36
  6. Step 6: Final answer
    x = 199,193,729.26

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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.