Finding the Fourth Proportional to 12,826,173.97, 17,700,406.48 and 7,319,439.19
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Solution
The fourth proportional to 12,826,173.97, 17,700,406.48 and 7,319,439.19 is: 10,100,989.52
Step by Step Solution
- Step 1: Write the proportion equation
12,826,173.97 : 17,700,406.48 = 7,319,439.19 : x - Step 2: Convert to fraction form
12,826,173.97/17,700,406.48 = 7,319,439.19/x - Step 3: Cross multiply
12,826,173.97x = 17,700,406.48 × 7,319,439.19 - Step 4: Simplify right side
12,826,173.97x = 129,557,048,868,641.97 - Step 5: Solve for x
x = 129,557,048,868,641.97/12,826,173.97 - Step 6: Final answer
x = 10,100,989.52
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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.