Finding the Fourth Proportional to 7,138,741.56, 9,851,577.84 and 3,875,553.68
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Solution
The fourth proportional to 7,138,741.56, 9,851,577.84 and 3,875,553.68 is: 5,348,326.23
Step by Step Solution
- Step 1: Write the proportion equation
7,138,741.56 : 9,851,577.84 = 3,875,553.68 : x - Step 2: Convert to fraction form
7,138,741.56/9,851,577.84 = 3,875,553.68/x - Step 3: Cross multiply
7,138,741.56x = 9,851,577.84 × 3,875,553.68 - Step 4: Simplify right side
7,138,741.56x = 38,180,318,751,618.45 - Step 5: Solve for x
x = 38,180,318,751,618.45/7,138,741.56 - Step 6: Final answer
x = 5,348,326.23
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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.