Finding the Fourth Proportional to 5,776,864.74, 7,972,322.13 and 3,198,545.10
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Solution
The fourth proportional to 5,776,864.74, 7,972,322.13 and 3,198,545.10 is: 4,414,129.99
Step by Step Solution
- Step 1: Write the proportion equation
5,776,864.74 : 7,972,322.13 = 3,198,545.10 : x - Step 2: Convert to fraction form
5,776,864.74/7,972,322.13 = 3,198,545.10/x - Step 3: Cross multiply
5,776,864.74x = 7,972,322.13 × 3,198,545.10 - Step 4: Simplify right side
5,776,864.74x = 25,499,831,884,533.06 - Step 5: Solve for x
x = 25,499,831,884,533.06/5,776,864.74 - Step 6: Final answer
x = 4,414,129.99
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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.