Finding the Fourth Proportional to 21,735,373.85, 29,982,326.18 and 13,572,440.09
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Solution
The fourth proportional to 21,735,373.85, 29,982,326.18 and 13,572,440.09 is: 18,722,168.23
Step by Step Solution
- Step 1: Write the proportion equation
21,735,373.85 : 29,982,326.18 = 13,572,440.09 : x - Step 2: Convert to fraction form
21,735,373.85/29,982,326.18 = 13,572,440.09/x - Step 3: Cross multiply
21,735,373.85x = 29,982,326.18 × 13,572,440.09 - Step 4: Simplify right side
21,735,373.85x = 406,933,325,619,114.75 - Step 5: Solve for x
x = 406,933,325,619,114.75/21,735,373.85 - Step 6: Final answer
x = 18,722,168.23
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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.