Finding the Fourth Proportional to 18,486,389.37, 27,732,107.51 and 7,701,167.98
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Solution
The fourth proportional to 18,486,389.37, 27,732,107.51 and 7,701,167.98 is: 11,552,803.21
Step by Step Solution
- Step 1: Write the proportion equation
18,486,389.37 : 27,732,107.51 = 7,701,167.98 : x - Step 2: Convert to fraction form
18,486,389.37/27,732,107.51 = 7,701,167.98/x - Step 3: Cross multiply
18,486,389.37x = 27,732,107.51 × 7,701,167.98 - Step 4: Simplify right side
18,486,389.37x = 213,569,618,373,929.56 - Step 5: Solve for x
x = 213,569,618,373,929.56/18,486,389.37 - Step 6: Final answer
x = 11,552,803.21
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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.