Finding the Fourth Proportional to 13,169,190.82, 19,852,492.02 and 12,291,329.02
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Solution
The fourth proportional to 13,169,190.82, 19,852,492.02 and 12,291,329.02 is: 18,529,119.57
Step by Step Solution
- Step 1: Write the proportion equation
13,169,190.82 : 19,852,492.02 = 12,291,329.02 : x - Step 2: Convert to fraction form
13,169,190.82/19,852,492.02 = 12,291,329.02/x - Step 3: Cross multiply
13,169,190.82x = 19,852,492.02 × 12,291,329.02 - Step 4: Simplify right side
13,169,190.82x = 244,013,511,284,744.41 - Step 5: Solve for x
x = 244,013,511,284,744.41/13,169,190.82 - Step 6: Final answer
x = 18,529,119.57
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.