Finding the Fourth Proportional to 27,918,503.94, 38,526,982.92 and 15,528,330.84
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Solution
The fourth proportional to 27,918,503.94, 38,526,982.92 and 15,528,330.84 is: 21,428,789.25
Step by Step Solution
- Step 1: Write the proportion equation
27,918,503.94 : 38,526,982.92 = 15,528,330.84 : x - Step 2: Convert to fraction form
27,918,503.94/38,526,982.92 = 15,528,330.84/x - Step 3: Cross multiply
27,918,503.94x = 38,526,982.92 × 15,528,330.84 - Step 4: Simplify right side
27,918,503.94x = 598,259,737,048,789.25 - Step 5: Solve for x
x = 598,259,737,048,789.25/27,918,503.94 - Step 6: Final answer
x = 21,428,789.25
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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.