Finding the Fourth Proportional to 16,461,709.72, 22,718,554.38 and 9,121,845.21
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Solution
The fourth proportional to 16,461,709.72, 22,718,554.38 and 9,121,845.21 is: 12,588,919.37
Step by Step Solution
- Step 1: Write the proportion equation
16,461,709.72 : 22,718,554.38 = 9,121,845.21 : x - Step 2: Convert to fraction form
16,461,709.72/22,718,554.38 = 9,121,845.21/x - Step 3: Cross multiply
16,461,709.72x = 22,718,554.38 × 9,121,845.21 - Step 4: Simplify right side
16,461,709.72x = 207,235,136,364,132.94 - Step 5: Solve for x
x = 207,235,136,364,132.94/16,461,709.72 - Step 6: Final answer
x = 12,588,919.37
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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.