Finding the Fourth Proportional to 21,735,427.24, 29,982,399.42 and 13,572,493.48
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Solution
The fourth proportional to 21,735,427.24, 29,982,399.42 and 13,572,493.48 is: 18,722,241.63
Step by Step Solution
- Step 1: Write the proportion equation
21,735,427.24 : 29,982,399.42 = 13,572,493.48 : x - Step 2: Convert to fraction form
21,735,427.24/29,982,399.42 = 13,572,493.48/x - Step 3: Cross multiply
21,735,427.24x = 29,982,399.42 × 13,572,493.48 - Step 4: Simplify right side
21,735,427.24x = 406,935,920,642,705.81 - Step 5: Solve for x
x = 406,935,920,642,705.81/21,735,427.24 - Step 6: Final answer
x = 18,722,241.63
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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.