Home / 132,860,407.80-199,290,611.70-81,576,132.60

Finding the Fourth Proportional to 132,860,407.80, 199,290,611.70 and 81,576,132.60

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Solution

The fourth proportional to 132,860,407.80, 199,290,611.70 and 81,576,132.60 is: 122,364,198.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,860,407.80 : 199,290,611.70 = 81,576,132.60 : x
  2. Step 2: Convert to fraction form
    132,860,407.80/199,290,611.70 = 81,576,132.60/x
  3. Step 3: Cross multiply
    132,860,407.80x = 199,290,611.70 × 81,576,132.60
  4. Step 4: Simplify right side
    132,860,407.80x = 16,257,357,365,974,310
  5. Step 5: Solve for x
    x = 16,257,357,365,974,310/132,860,407.80
  6. Step 6: Final answer
    x = 122,364,198.90

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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.