Finding the Fourth Proportional to 12,312,444.62, 16,992,861.36 and 7,085,345.42
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Solution
The fourth proportional to 12,312,444.62, 16,992,861.36 and 7,085,345.42 is: 9,778,747.94
Step by Step Solution
- Step 1: Write the proportion equation
12,312,444.62 : 16,992,861.36 = 7,085,345.42 : x - Step 2: Convert to fraction form
12,312,444.62/16,992,861.36 = 7,085,345.42/x - Step 3: Cross multiply
12,312,444.62x = 16,992,861.36 × 7,085,345.42 - Step 4: Simplify right side
12,312,444.62x = 120,400,292,409,770.97 - Step 5: Solve for x
x = 120,400,292,409,770.97/12,312,444.62 - Step 6: Final answer
x = 9,778,747.94
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1.5x scale
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.