Home / 161,860,013.40-242,790,020.10-112,542,288.60

Finding the Fourth Proportional to 161,860,013.40, 242,790,020.10 and 112,542,288.60

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Solution

The fourth proportional to 161,860,013.40, 242,790,020.10 and 112,542,288.60 is: 168,813,432.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,860,013.40 : 242,790,020.10 = 112,542,288.60 : x
  2. Step 2: Convert to fraction form
    161,860,013.40/242,790,020.10 = 112,542,288.60/x
  3. Step 3: Cross multiply
    161,860,013.40x = 242,790,020.10 × 112,542,288.60
  4. Step 4: Simplify right side
    161,860,013.40x = 27,324,144,511,294,000
  5. Step 5: Solve for x
    x = 27,324,144,511,294,000/161,860,013.40
  6. Step 6: Final answer
    x = 168,813,432.90

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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.