Finding the Fourth Proportional to 18,145,121.60, 27,217,682.40 and 6,783,219.20
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Solution
The fourth proportional to 18,145,121.60, 27,217,682.40 and 6,783,219.20 is: 10,174,828.80
Step by Step Solution
- Step 1: Write the proportion equation
18,145,121.60 : 27,217,682.40 = 6,783,219.20 : x - Step 2: Convert to fraction form
18,145,121.60/27,217,682.40 = 6,783,219.20/x - Step 3: Cross multiply
18,145,121.60x = 27,217,682.40 × 6,783,219.20 - Step 4: Simplify right side
18,145,121.60x = 184,623,505,835,182.06 - Step 5: Solve for x
x = 184,623,505,835,182.06/18,145,121.60 - Step 6: Final answer
x = 10,174,828.80
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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.