Finding the Fourth Proportional to 7,129,135.80, 10,693,703.70 and 2,335,669.20
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Solution
The fourth proportional to 7,129,135.80, 10,693,703.70 and 2,335,669.20 is: 3,503,503.80
Step by Step Solution
- Step 1: Write the proportion equation
7,129,135.80 : 10,693,703.70 = 2,335,669.20 : x - Step 2: Convert to fraction form
7,129,135.80/10,693,703.70 = 2,335,669.20/x - Step 3: Cross multiply
7,129,135.80x = 10,693,703.70 × 2,335,669.20 - Step 4: Simplify right side
7,129,135.80x = 24,976,954,366,016.04 - Step 5: Solve for x
x = 24,976,954,366,016.04/7,129,135.80 - Step 6: Final answer
x = 3,503,503.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.