Finding the Fourth Proportional to 18,145,400.90, 27,218,101.35 and 8,048,021.90
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Solution
The fourth proportional to 18,145,400.90, 27,218,101.35 and 8,048,021.90 is: 12,072,032.85
Step by Step Solution
- Step 1: Write the proportion equation
18,145,400.90 : 27,218,101.35 = 8,048,021.90 : x - Step 2: Convert to fraction form
18,145,400.90/27,218,101.35 = 8,048,021.90/x - Step 3: Cross multiply
18,145,400.90x = 27,218,101.35 × 8,048,021.90 - Step 4: Simplify right side
18,145,400.90x = 219,051,875,741,219.59 - Step 5: Solve for x
x = 219,051,875,741,219.59/18,145,400.90 - Step 6: Final answer
x = 12,072,032.85
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1.5x scale
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.