Finding the Fourth Proportional to 5,418,278.33, 7,477,138.49 and 2,970,909.50
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Solution
The fourth proportional to 5,418,278.33, 7,477,138.49 and 2,970,909.50 is: 4,099,808.17
Step by Step Solution
- Step 1: Write the proportion equation
5,418,278.33 : 7,477,138.49 = 2,970,909.50 : x - Step 2: Convert to fraction form
5,418,278.33/7,477,138.49 = 2,970,909.50/x - Step 3: Cross multiply
5,418,278.33x = 7,477,138.49 × 2,970,909.50 - Step 4: Simplify right side
5,418,278.33x = 22,213,901,720,516.42 - Step 5: Solve for x
x = 22,213,901,720,516.42/5,418,278.33 - Step 6: Final answer
x = 4,099,808.17
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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.