Finding the Fourth Proportional to 3,780,637.74, 5,217,589.98 and 2,149,556.94
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Solution
The fourth proportional to 3,780,637.74, 5,217,589.98 and 2,149,556.94 is: 2,966,564.78
Step by Step Solution
- Step 1: Write the proportion equation
3,780,637.74 : 5,217,589.98 = 2,149,556.94 : x - Step 2: Convert to fraction form
3,780,637.74/5,217,589.98 = 2,149,556.94/x - Step 3: Cross multiply
3,780,637.74x = 5,217,589.98 × 2,149,556.94 - Step 4: Simplify right side
3,780,637.74x = 11,215,506,751,583.46 - Step 5: Solve for x
x = 11,215,506,751,583.46/3,780,637.74 - Step 6: Final answer
x = 2,966,564.78
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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.