Finding the Fourth Proportional to 7,239,516.66, 9,990,615.18 and 3,976,407.87
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Solution
The fourth proportional to 7,239,516.66, 9,990,615.18 and 3,976,407.87 is: 5,487,488.00
Step by Step Solution
- Step 1: Write the proportion equation
7,239,516.66 : 9,990,615.18 = 3,976,407.87 : x - Step 2: Convert to fraction form
7,239,516.66/9,990,615.18 = 3,976,407.87/x - Step 3: Cross multiply
7,239,516.66x = 9,990,615.18 × 3,976,407.87 - Step 4: Simplify right side
7,239,516.66x = 39,726,760,827,893.47 - Step 5: Solve for x
x = 39,726,760,827,893.47/7,239,516.66 - Step 6: Final answer
x = 5,487,488.00
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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.