Finding the Fourth Proportional to 6,539,737.09, 9,811,705.97 and 1,991,665.66
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Solution
The fourth proportional to 6,539,737.09, 9,811,705.97 and 1,991,665.66 is: 2,988,138.14
Step by Step Solution
- Step 1: Write the proportion equation
6,539,737.09 : 9,811,705.97 = 1,991,665.66 : x - Step 2: Convert to fraction form
6,539,737.09/9,811,705.97 = 1,991,665.66/x - Step 3: Cross multiply
6,539,737.09x = 9,811,705.97 × 1,991,665.66 - Step 4: Simplify right side
6,539,737.09x = 19,541,637,846,465.99 - Step 5: Solve for x
x = 19,541,637,846,465.99/6,539,737.09 - Step 6: Final answer
x = 2,988,138.14
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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.