Finding the Fourth Proportional to 5,418,378.27, 7,477,448.72 and 2,971,212.75
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Solution
The fourth proportional to 5,418,378.27, 7,477,448.72 and 2,971,212.75 is: 4,100,321.14
Step by Step Solution
- Step 1: Write the proportion equation
5,418,378.27 : 7,477,448.72 = 2,971,212.75 : x - Step 2: Convert to fraction form
5,418,378.27/7,477,448.72 = 2,971,212.75/x - Step 3: Cross multiply
5,418,378.27x = 7,477,448.72 × 2,971,212.75 - Step 4: Simplify right side
5,418,378.27x = 22,217,090,959,479.12 - Step 5: Solve for x
x = 22,217,090,959,479.12/5,418,378.27 - Step 6: Final answer
x = 4,100,321.14
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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.