Finding the Fourth Proportional to 8,397,663.28, 11,582,805.81 and 5,605,378.70
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Solution
The fourth proportional to 8,397,663.28, 11,582,805.81 and 5,605,378.70 is: 7,731,438.00
Step by Step Solution
- Step 1: Write the proportion equation
8,397,663.28 : 11,582,805.81 = 5,605,378.70 : x - Step 2: Convert to fraction form
8,397,663.28/11,582,805.81 = 5,605,378.70/x - Step 3: Cross multiply
8,397,663.28x = 11,582,805.81 × 5,605,378.70 - Step 4: Simplify right side
8,397,663.28x = 64,926,012,973,610.25 - Step 5: Solve for x
x = 64,926,012,973,610.25/8,397,663.28 - Step 6: Final answer
x = 7,731,438.00
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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.