Finding the Fourth Proportional to 15,676,822.24, 21,635,378.99 and 8,708,855.25
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Solution
The fourth proportional to 15,676,822.24, 21,635,378.99 and 8,708,855.25 is: 12,018,978.15
Step by Step Solution
- Step 1: Write the proportion equation
15,676,822.24 : 21,635,378.99 = 8,708,855.25 : x - Step 2: Convert to fraction form
15,676,822.24/21,635,378.99 = 8,708,855.25/x - Step 3: Cross multiply
15,676,822.24x = 21,635,378.99 × 8,708,855.25 - Step 4: Simplify right side
15,676,822.24x = 188,419,383,902,801.19 - Step 5: Solve for x
x = 188,419,383,902,801.19/15,676,822.24 - Step 6: Final answer
x = 12,018,978.15
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.