Finding the Fourth Proportional to 15,503,707, 21,394,906.68 and 8,628,187.24
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Solution
The fourth proportional to 15,503,707, 21,394,906.68 and 8,628,187.24 is: 11,906,782.09
Step by Step Solution
- Step 1: Write the proportion equation
15,503,707 : 21,394,906.68 = 8,628,187.24 : x - Step 2: Convert to fraction form
15,503,707/21,394,906.68 = 8,628,187.24/x - Step 3: Cross multiply
15,503,707x = 21,394,906.68 × 8,628,187.24 - Step 4: Simplify right side
15,503,707x = 184,599,260,817,366.75 - Step 5: Solve for x
x = 184,599,260,817,366.75/15,503,707 - Step 6: Final answer
x = 11,906,782.09
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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.