Finding the Fourth Proportional to 15,764,998.06, 21,755,687.70 and 8,521,654.06
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Solution
The fourth proportional to 15,764,998.06, 21,755,687.70 and 8,521,654.06 is: 11,759,877.40
Step by Step Solution
- Step 1: Write the proportion equation
15,764,998.06 : 21,755,687.70 = 8,521,654.06 : x - Step 2: Convert to fraction form
15,764,998.06/21,755,687.70 = 8,521,654.06/x - Step 3: Cross multiply
15,764,998.06x = 21,755,687.70 × 8,521,654.06 - Step 4: Simplify right side
15,764,998.06x = 185,394,444,416,797.06 - Step 5: Solve for x
x = 185,394,444,416,797.06/15,764,998.06 - Step 6: Final answer
x = 11,759,877.40
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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.