Finding the Fourth Proportional to 19,409,450.80, 29,103,678.60 and 8,051,047.60
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Solution
The fourth proportional to 19,409,450.80, 29,103,678.60 and 8,051,047.60 is: 12,072,216.99
Step by Step Solution
- Step 1: Write the proportion equation
19,409,450.80 : 29,103,678.60 = 8,051,047.60 : x - Step 2: Convert to fraction form
19,409,450.80/29,103,678.60 = 8,051,047.60/x - Step 3: Cross multiply
19,409,450.80x = 29,103,678.60 × 8,051,047.60 - Step 4: Simplify right side
19,409,450.80x = 234,315,101,743,701.38 - Step 5: Solve for x
x = 234,315,101,743,701.38/19,409,450.80 - Step 6: Final answer
x = 12,072,216.99
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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.