Finding the Fourth Proportional to 3,619,699.82, 4,995,283.31 and 2,129,655.53
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Solution
The fourth proportional to 3,619,699.82, 4,995,283.31 and 2,129,655.53 is: 2,938,982.03
Step by Step Solution
- Step 1: Write the proportion equation
3,619,699.82 : 4,995,283.31 = 2,129,655.53 : x - Step 2: Convert to fraction form
3,619,699.82/4,995,283.31 = 2,129,655.53/x - Step 3: Cross multiply
3,619,699.82x = 4,995,283.31 × 2,129,655.53 - Step 4: Simplify right side
3,619,699.82x = 10,638,232,725,058.20 - Step 5: Solve for x
x = 10,638,232,725,058.20/3,619,699.82 - Step 6: Final answer
x = 2,938,982.03
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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.