Finding the Fourth Proportional to 7,008,721.14, 9,670,207.42 and 4,106,552.70
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Solution
The fourth proportional to 7,008,721.14, 9,670,207.42 and 4,106,552.70 is: 5,665,971.81
Step by Step Solution
- Step 1: Write the proportion equation
7,008,721.14 : 9,670,207.42 = 4,106,552.70 : x - Step 2: Convert to fraction form
7,008,721.14/9,670,207.42 = 4,106,552.70/x - Step 3: Cross multiply
7,008,721.14x = 9,670,207.42 × 4,106,552.70 - Step 4: Simplify right side
7,008,721.14x = 39,711,216,390,161.04 - Step 5: Solve for x
x = 39,711,216,390,161.04/7,008,721.14 - Step 6: Final answer
x = 5,665,971.81
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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.