Finding the Fourth Proportional to 15,312,824.97, 21,133,187.63 and 11,438,620.08
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Solution
The fourth proportional to 15,312,824.97, 21,133,187.63 and 11,438,620.08 is: 15,786,408.11
Step by Step Solution
- Step 1: Write the proportion equation
15,312,824.97 : 21,133,187.63 = 11,438,620.08 : x - Step 2: Convert to fraction form
15,312,824.97/21,133,187.63 = 11,438,620.08/x - Step 3: Cross multiply
15,312,824.97x = 21,133,187.63 × 11,438,620.08 - Step 4: Simplify right side
15,312,824.97x = 241,734,504,372,075.22 - Step 5: Solve for x
x = 241,734,504,372,075.22/15,312,824.97 - Step 6: Final answer
x = 15,786,408.11
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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.