Finding the Fourth Proportional to 7,046,152.62, 9,723,365.19 and 3,990,388.74
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Solution
The fourth proportional to 7,046,152.62, 9,723,365.19 and 3,990,388.74 is: 5,506,552.17
Step by Step Solution
- Step 1: Write the proportion equation
7,046,152.62 : 9,723,365.19 = 3,990,388.74 : x - Step 2: Convert to fraction form
7,046,152.62/9,723,365.19 = 3,990,388.74/x - Step 3: Cross multiply
7,046,152.62x = 9,723,365.19 × 3,990,388.74 - Step 4: Simplify right side
7,046,152.62x = 38,800,006,969,083.96 - Step 5: Solve for x
x = 38,800,006,969,083.96/7,046,152.62 - Step 6: Final answer
x = 5,506,552.17
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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.