Finding the Fourth Proportional to 19,407,638.80, 29,107,375.80 and 9,813,998.80
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Solution
The fourth proportional to 19,407,638.80, 29,107,375.80 and 9,813,998.80 is: 14,718,933.82
Step by Step Solution
- Step 1: Write the proportion equation
19,407,638.80 : 29,107,375.80 = 9,813,998.80 : x - Step 2: Convert to fraction form
19,407,638.80/29,107,375.80 = 9,813,998.80/x - Step 3: Cross multiply
19,407,638.80x = 29,107,375.80 × 9,813,998.80 - Step 4: Simplify right side
19,407,638.80x = 285,659,751,172,349.06 - Step 5: Solve for x
x = 285,659,751,172,349.06/19,407,638.80 - Step 6: Final answer
x = 14,718,933.82
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.