Finding the Fourth Proportional to 3,872,244.63, 5,343,798.41 and 2,129,958.93
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Solution
The fourth proportional to 3,872,244.63, 5,343,798.41 and 2,129,958.93 is: 2,939,398.77
Step by Step Solution
- Step 1: Write the proportion equation
3,872,244.63 : 5,343,798.41 = 2,129,958.93 : x - Step 2: Convert to fraction form
3,872,244.63/5,343,798.41 = 2,129,958.93/x - Step 3: Cross multiply
3,872,244.63x = 5,343,798.41 × 2,129,958.93 - Step 4: Simplify right side
3,872,244.63x = 11,382,071,106,130.51 - Step 5: Solve for x
x = 11,382,071,106,130.51/3,872,244.63 - Step 6: Final answer
x = 2,939,398.77
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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.