Finding the Fourth Proportional to 5,387,154.55, 7,434,431.71 and 2,939,924.03
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Solution
The fourth proportional to 5,387,154.55, 7,434,431.71 and 2,939,924.03 is: 4,057,181.62
Step by Step Solution
- Step 1: Write the proportion equation
5,387,154.55 : 7,434,431.71 = 2,939,924.03 : x - Step 2: Convert to fraction form
5,387,154.55/7,434,431.71 = 2,939,924.03/x - Step 3: Cross multiply
5,387,154.55x = 7,434,431.71 × 2,939,924.03 - Step 4: Simplify right side
5,387,154.55x = 21,856,664,389,101.02 - Step 5: Solve for x
x = 21,856,664,389,101.02/5,387,154.55 - Step 6: Final answer
x = 4,057,181.62
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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.