Finding the Fourth Proportional to 6,478,088.88, 9,717,105.63 and 2,639,055.06
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Solution
The fourth proportional to 6,478,088.88, 9,717,105.63 and 2,639,055.06 is: 3,958,571.31
Step by Step Solution
- Step 1: Write the proportion equation
6,478,088.88 : 9,717,105.63 = 2,639,055.06 : x - Step 2: Convert to fraction form
6,478,088.88/9,717,105.63 = 2,639,055.06/x - Step 3: Cross multiply
6,478,088.88x = 9,717,105.63 × 2,639,055.06 - Step 4: Simplify right side
6,478,088.88x = 25,643,976,781,405.99 - Step 5: Solve for x
x = 25,643,976,781,405.99/6,478,088.88 - Step 6: Final answer
x = 3,958,571.31
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.