Finding the Fourth Proportional to 28,471,322, 39,290,218.84 and 15,418,278.08
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Solution
The fourth proportional to 28,471,322, 39,290,218.84 and 15,418,278.08 is: 21,277,112.45
Step by Step Solution
- Step 1: Write the proportion equation
28,471,322 : 39,290,218.84 = 15,418,278.08 : x - Step 2: Convert to fraction form
28,471,322/39,290,218.84 = 15,418,278.08/x - Step 3: Cross multiply
28,471,322x = 39,290,218.84 × 15,418,278.08 - Step 4: Simplify right side
28,471,322x = 605,787,519,899,175.12 - Step 5: Solve for x
x = 605,787,519,899,175.12/28,471,322 - Step 6: Final answer
x = 21,277,112.45
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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.