Finding the Fourth Proportional to 7,990,554.02, 11,019,610.72 and 5,236,241.09
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Solution
The fourth proportional to 7,990,554.02, 11,019,610.72 and 5,236,241.09 is: 7,221,193.71
Step by Step Solution
- Step 1: Write the proportion equation
7,990,554.02 : 11,019,610.72 = 5,236,241.09 : x - Step 2: Convert to fraction form
7,990,554.02/11,019,610.72 = 5,236,241.09/x - Step 3: Cross multiply
7,990,554.02x = 11,019,610.72 × 5,236,241.09 - Step 4: Simplify right side
7,990,554.02x = 57,701,338,447,868.48 - Step 5: Solve for x
x = 57,701,338,447,868.48/7,990,554.02 - Step 6: Final answer
x = 7,221,193.71
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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.