Finding the Fourth Proportional to 7,777,212.91, 10,729,560.42 and 4,871,545.27
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Solution
The fourth proportional to 7,777,212.91, 10,729,560.42 and 4,871,545.27 is: 6,720,857.45
Step by Step Solution
- Step 1: Write the proportion equation
7,777,212.91 : 10,729,560.42 = 4,871,545.27 : x - Step 2: Convert to fraction form
7,777,212.91/10,729,560.42 = 4,871,545.27/x - Step 3: Cross multiply
7,777,212.91x = 10,729,560.42 × 4,871,545.27 - Step 4: Simplify right side
7,777,212.91x = 52,269,539,286,406.31 - Step 5: Solve for x
x = 52,269,539,286,406.31/7,777,212.91 - Step 6: Final answer
x = 6,720,857.45
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1.5x scale
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.