Finding the Fourth Proportional to 11,638,056.21, 16,061,015.82 and 6,481,417.75
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Solution
The fourth proportional to 11,638,056.21, 16,061,015.82 and 6,481,417.75 is: 8,944,633.99
Step by Step Solution
- Step 1: Write the proportion equation
11,638,056.21 : 16,061,015.82 = 6,481,417.75 : x - Step 2: Convert to fraction form
11,638,056.21/16,061,015.82 = 6,481,417.75/x - Step 3: Cross multiply
11,638,056.21x = 16,061,015.82 × 6,481,417.75 - Step 4: Simplify right side
11,638,056.21x = 104,098,153,075,042.56 - Step 5: Solve for x
x = 104,098,153,075,042.56/11,638,056.21 - Step 6: Final answer
x = 8,944,633.99
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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.