Finding the Fourth Proportional to 7,117,497.44, 9,822,151.80 and 3,854,315.75
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Solution
The fourth proportional to 7,117,497.44, 9,822,151.80 and 3,854,315.75 is: 5,318,958.62
Step by Step Solution
- Step 1: Write the proportion equation
7,117,497.44 : 9,822,151.80 = 3,854,315.75 : x - Step 2: Convert to fraction form
7,117,497.44/9,822,151.80 = 3,854,315.75/x - Step 3: Cross multiply
7,117,497.44x = 9,822,151.80 × 3,854,315.75 - Step 4: Simplify right side
7,117,497.44x = 37,857,674,381,630.85 - Step 5: Solve for x
x = 37,857,674,381,630.85/7,117,497.44 - Step 6: Final answer
x = 5,318,958.62
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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.