Home / 18,695,453.40-28,043,180.10-12,312,912.60

Finding the Fourth Proportional to 18,695,453.40, 28,043,180.10 and 12,312,912.60

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Solution

The fourth proportional to 18,695,453.40, 28,043,180.10 and 12,312,912.60 is: 18,469,368.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,695,453.40 : 28,043,180.10 = 12,312,912.60 : x
  2. Step 2: Convert to fraction form
    18,695,453.40/28,043,180.10 = 12,312,912.60/x
  3. Step 3: Cross multiply
    18,695,453.40x = 28,043,180.10 × 12,312,912.60
  4. Step 4: Simplify right side
    18,695,453.40x = 345,293,225,597,359.25
  5. Step 5: Solve for x
    x = 345,293,225,597,359.25/18,695,453.40
  6. Step 6: Final answer
    x = 18,469,368.90

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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.