Finding the Fourth Proportional to 5,470,861.97, 7,549,813.08 and 2,990,132.61
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Solution
The fourth proportional to 5,470,861.97, 7,549,813.08 and 2,990,132.61 is: 4,126,395.88
Step by Step Solution
- Step 1: Write the proportion equation
5,470,861.97 : 7,549,813.08 = 2,990,132.61 : x - Step 2: Convert to fraction form
5,470,861.97/7,549,813.08 = 2,990,132.61/x - Step 3: Cross multiply
5,470,861.97x = 7,549,813.08 × 2,990,132.61 - Step 4: Simplify right side
5,470,861.97x = 22,574,942,289,912.54 - Step 5: Solve for x
x = 22,574,942,289,912.54/5,470,861.97 - Step 6: Final answer
x = 4,126,395.88
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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.