Finding the Fourth Proportional to 15,268,524.82, 21,070,705.36 and 8,299,218.76
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Solution
The fourth proportional to 15,268,524.82, 21,070,705.36 and 8,299,218.76 is: 11,452,998.59
Step by Step Solution
- Step 1: Write the proportion equation
15,268,524.82 : 21,070,705.36 = 8,299,218.76 : x - Step 2: Convert to fraction form
15,268,524.82/21,070,705.36 = 8,299,218.76/x - Step 3: Cross multiply
15,268,524.82x = 21,070,705.36 × 8,299,218.76 - Step 4: Simplify right side
15,268,524.82x = 174,870,393,210,144.53 - Step 5: Solve for x
x = 174,870,393,210,144.53/15,268,524.82 - Step 6: Final answer
x = 11,452,998.59
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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.