Finding the Fourth Proportional to 13,183,485.30, 19,775,227.95 and 8,081,651.70
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Solution
The fourth proportional to 13,183,485.30, 19,775,227.95 and 8,081,651.70 is: 12,122,477.55
Step by Step Solution
- Step 1: Write the proportion equation
13,183,485.30 : 19,775,227.95 = 8,081,651.70 : x - Step 2: Convert to fraction form
13,183,485.30/19,775,227.95 = 8,081,651.70/x - Step 3: Cross multiply
13,183,485.30x = 19,775,227.95 × 8,081,651.70 - Step 4: Simplify right side
13,183,485.30x = 159,816,504,580,005 - Step 5: Solve for x
x = 159,816,504,580,005/13,183,485.30 - Step 6: Final answer
x = 12,122,477.55
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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.