Home / 20,458,138.60-30,676,148.70-8,492,084.20

Finding the Fourth Proportional to 20,458,138.60, 30,676,148.70 and 8,492,084.20

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Solution

The fourth proportional to 20,458,138.60, 30,676,148.70 and 8,492,084.20 is: 12,733,535.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,458,138.60 : 30,676,148.70 = 8,492,084.20 : x
  2. Step 2: Convert to fraction form
    20,458,138.60/30,676,148.70 = 8,492,084.20/x
  3. Step 3: Cross multiply
    20,458,138.60x = 30,676,148.70 × 8,492,084.20
  4. Step 4: Simplify right side
    20,458,138.60x = 260,504,437,692,120.50
  5. Step 5: Solve for x
    x = 260,504,437,692,120.50/20,458,138.60
  6. Step 6: Final answer
    x = 12,733,535.67

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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.