Finding the Fourth Proportional to 13,628,916.14, 18,807,963.12 and 7,434,096.17
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Solution
The fourth proportional to 13,628,916.14, 18,807,963.12 and 7,434,096.17 is: 10,259,084.81
Step by Step Solution
- Step 1: Write the proportion equation
13,628,916.14 : 18,807,963.12 = 7,434,096.17 : x - Step 2: Convert to fraction form
13,628,916.14/18,807,963.12 = 7,434,096.17/x - Step 3: Cross multiply
13,628,916.14x = 18,807,963.12 × 7,434,096.17 - Step 4: Simplify right side
13,628,916.14x = 139,820,206,501,853.44 - Step 5: Solve for x
x = 139,820,206,501,853.44/13,628,916.14 - Step 6: Final answer
x = 10,259,084.81
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.