Finding the Fourth Proportional to 13,563,786.49, 18,718,047.57 and 7,368,857.53
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Solution
The fourth proportional to 13,563,786.49, 18,718,047.57 and 7,368,857.53 is: 10,169,035.46
Step by Step Solution
- Step 1: Write the proportion equation
13,563,786.49 : 18,718,047.57 = 7,368,857.53 : x - Step 2: Convert to fraction form
13,563,786.49/18,718,047.57 = 7,368,857.53/x - Step 3: Cross multiply
13,563,786.49x = 18,718,047.57 × 7,368,857.53 - Step 4: Simplify right side
13,563,786.49x = 137,930,625,783,092.70 - Step 5: Solve for x
x = 137,930,625,783,092.70/13,563,786.49 - Step 6: Final answer
x = 10,169,035.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.