Finding the Fourth Proportional to 7,019,653.82, 9,687,186.36 and 4,119,093.02
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Solution
The fourth proportional to 7,019,653.82, 9,687,186.36 and 4,119,093.02 is: 5,684,385.98
Step by Step Solution
- Step 1: Write the proportion equation
7,019,653.82 : 9,687,186.36 = 4,119,093.02 : x - Step 2: Convert to fraction form
7,019,653.82/9,687,186.36 = 4,119,093.02/x - Step 3: Cross multiply
7,019,653.82x = 9,687,186.36 × 4,119,093.02 - Step 4: Simplify right side
7,019,653.82x = 39,902,421,743,133.17 - Step 5: Solve for x
x = 39,902,421,743,133.17/7,019,653.82 - Step 6: Final answer
x = 5,684,385.98
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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.