Finding the Fourth Proportional to 12,729,114.66, 19,106,003.09 and 12,037,826.18
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Solution
The fourth proportional to 12,729,114.66, 19,106,003.09 and 12,037,826.18 is: 18,068,400.70
Step by Step Solution
- Step 1: Write the proportion equation
12,729,114.66 : 19,106,003.09 = 12,037,826.18 : x - Step 2: Convert to fraction form
12,729,114.66/19,106,003.09 = 12,037,826.18/x - Step 3: Cross multiply
12,729,114.66x = 19,106,003.09 × 12,037,826.18 - Step 4: Simplify right side
12,729,114.66x = 229,994,744,191,962.88 - Step 5: Solve for x
x = 229,994,744,191,962.88/12,729,114.66 - Step 6: Final answer
x = 18,068,400.70
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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.