Home / 13,971,965.40-20,915,957.70-8,289,264.60

Finding the Fourth Proportional to 13,971,965.40, 20,915,957.70 and 8,289,264.60

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Solution

The fourth proportional to 13,971,965.40, 20,915,957.70 and 8,289,264.60 is: 12,408,984.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,971,965.40 : 20,915,957.70 = 8,289,264.60 : x
  2. Step 2: Convert to fraction form
    13,971,965.40/20,915,957.70 = 8,289,264.60/x
  3. Step 3: Cross multiply
    13,971,965.40x = 20,915,957.70 × 8,289,264.60
  4. Step 4: Simplify right side
    13,971,965.40x = 173,377,907,737,707.41
  5. Step 5: Solve for x
    x = 173,377,907,737,707.41/13,971,965.40
  6. Step 6: Final answer
    x = 12,408,984.90

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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.