Home / 132,099,181.60-198,148,772.40-80,443,116.40

Finding the Fourth Proportional to 132,099,181.60, 198,148,772.40 and 80,443,116.40

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Solution

The fourth proportional to 132,099,181.60, 198,148,772.40 and 80,443,116.40 is: 120,664,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,099,181.60 : 198,148,772.40 = 80,443,116.40 : x
  2. Step 2: Convert to fraction form
    132,099,181.60/198,148,772.40 = 80,443,116.40/x
  3. Step 3: Cross multiply
    132,099,181.60x = 198,148,772.40 × 80,443,116.40
  4. Step 4: Simplify right side
    132,099,181.60x = 15,939,704,762,690,310
  5. Step 5: Solve for x
    x = 15,939,704,762,690,310/132,099,181.60
  6. Step 6: Final answer
    x = 120,664,674.60

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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.