Finding the Fourth Proportional to 5,765,663.88, 7,955,925.30 and 3,186,993.96
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Solution
The fourth proportional to 5,765,663.88, 7,955,925.30 and 3,186,993.96 is: 4,397,669.79
Step by Step Solution
- Step 1: Write the proportion equation
5,765,663.88 : 7,955,925.30 = 3,186,993.96 : x - Step 2: Convert to fraction form
5,765,663.88/7,955,925.30 = 3,186,993.96/x - Step 3: Cross multiply
5,765,663.88x = 7,955,925.30 × 3,186,993.96 - Step 4: Simplify right side
5,765,663.88x = 25,355,485,877,311.19 - Step 5: Solve for x
x = 25,355,485,877,311.19/5,765,663.88 - Step 6: Final answer
x = 4,397,669.79
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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.