Home / 166,017,915.45-249,404,786.78-120,101,413.05

Finding the Fourth Proportional to 166,017,915.45, 249,404,786.78 and 120,101,413.05

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Solution

The fourth proportional to 166,017,915.45, 249,404,786.78 and 120,101,413.05 is: 180,425,511.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,017,915.45 : 249,404,786.78 = 120,101,413.05 : x
  2. Step 2: Convert to fraction form
    166,017,915.45/249,404,786.78 = 120,101,413.05/x
  3. Step 3: Cross multiply
    166,017,915.45x = 249,404,786.78 × 120,101,413.05
  4. Step 4: Simplify right side
    166,017,915.45x = 29,953,867,313,111,452
  5. Step 5: Solve for x
    x = 29,953,867,313,111,452/166,017,915.45
  6. Step 6: Final answer
    x = 180,425,511.50

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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.