Finding the Fourth Proportional to 6,990,548.13, 10,486,195.85 and 2,198,611.06
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Solution
The fourth proportional to 6,990,548.13, 10,486,195.85 and 2,198,611.06 is: 3,298,034.11
Step by Step Solution
- Step 1: Write the proportion equation
6,990,548.13 : 10,486,195.85 = 2,198,611.06 : x - Step 2: Convert to fraction form
6,990,548.13/10,486,195.85 = 2,198,611.06/x - Step 3: Cross multiply
6,990,548.13x = 10,486,195.85 × 2,198,611.06 - Step 4: Simplify right side
6,990,548.13x = 23,055,066,152,417.14 - Step 5: Solve for x
x = 23,055,066,152,417.14/6,990,548.13 - Step 6: Final answer
x = 3,298,034.11
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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.