Home / 120,384,098.10-180,576,147.15-103,065,390.90

Finding the Fourth Proportional to 120,384,098.10, 180,576,147.15 and 103,065,390.90

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Solution

The fourth proportional to 120,384,098.10, 180,576,147.15 and 103,065,390.90 is: 154,598,086.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,384,098.10 : 180,576,147.15 = 103,065,390.90 : x
  2. Step 2: Convert to fraction form
    120,384,098.10/180,576,147.15 = 103,065,390.90/x
  3. Step 3: Cross multiply
    120,384,098.10x = 180,576,147.15 × 103,065,390.90
  4. Step 4: Simplify right side
    120,384,098.10x = 18,611,151,193,230,672
  5. Step 5: Solve for x
    x = 18,611,151,193,230,672/120,384,098.10
  6. Step 6: Final answer
    x = 154,598,086.35

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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.