Finding the Fourth Proportional to 7,160,625.84, 9,882,505.12 and 4,021,405.44
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Solution
The fourth proportional to 7,160,625.84, 9,882,505.12 and 4,021,405.44 is: 5,550,012.07
Step by Step Solution
- Step 1: Write the proportion equation
7,160,625.84 : 9,882,505.12 = 4,021,405.44 : x - Step 2: Convert to fraction form
7,160,625.84/9,882,505.12 = 4,021,405.44/x - Step 3: Cross multiply
7,160,625.84x = 9,882,505.12 × 4,021,405.44 - Step 4: Simplify right side
7,160,625.84x = 39,741,559,850,395.85 - Step 5: Solve for x
x = 39,741,559,850,395.85/7,160,625.84 - Step 6: Final answer
x = 5,550,012.07
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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.