Finding the Fourth Proportional to 18,519,201.42, 25,551,881.07 and 10,681,110.99
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Solution
The fourth proportional to 18,519,201.42, 25,551,881.07 and 10,681,110.99 is: 14,737,270.33
Step by Step Solution
- Step 1: Write the proportion equation
18,519,201.42 : 25,551,881.07 = 10,681,110.99 : x - Step 2: Convert to fraction form
18,519,201.42/25,551,881.07 = 10,681,110.99/x - Step 3: Cross multiply
18,519,201.42x = 25,551,881.07 × 10,681,110.99 - Step 4: Simplify right side
18,519,201.42x = 272,922,477,711,949.97 - Step 5: Solve for x
x = 272,922,477,711,949.97/18,519,201.42 - Step 6: Final answer
x = 14,737,270.33
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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.