Finding the Fourth Proportional to 22,971,342.36, 31,700,455.26 and 13,319,149.08
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Solution
The fourth proportional to 22,971,342.36, 31,700,455.26 and 13,319,149.08 is: 18,380,427.36
Step by Step Solution
- Step 1: Write the proportion equation
22,971,342.36 : 31,700,455.26 = 13,319,149.08 : x - Step 2: Convert to fraction form
22,971,342.36/31,700,455.26 = 13,319,149.08/x - Step 3: Cross multiply
22,971,342.36x = 31,700,455.26 × 13,319,149.08 - Step 4: Simplify right side
22,971,342.36x = 422,223,089,511,810.19 - Step 5: Solve for x
x = 422,223,089,511,810.19/22,971,342.36 - Step 6: Final answer
x = 18,380,427.36
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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.