Finding the Fourth Proportional to 12,090,553.09, 16,656,583.31 and 8,413,145.53
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Solution
The fourth proportional to 12,090,553.09, 16,656,583.31 and 8,413,145.53 is: 11,590,392.79
Step by Step Solution
- Step 1: Write the proportion equation
12,090,553.09 : 16,656,583.31 = 8,413,145.53 : x - Step 2: Convert to fraction form
12,090,553.09/16,656,583.31 = 8,413,145.53/x - Step 3: Cross multiply
12,090,553.09x = 16,656,583.31 × 8,413,145.53 - Step 4: Simplify right side
12,090,553.09x = 140,134,259,377,533.36 - Step 5: Solve for x
x = 140,134,259,377,533.36/12,090,553.09 - Step 6: Final answer
x = 11,590,392.79
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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.