Finding the Fourth Proportional to 28,890,480.54, 39,868,716.24 and 15,659,604.12
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Solution
The fourth proportional to 28,890,480.54, 39,868,716.24 and 15,659,604.12 is: 21,610,174.06
Step by Step Solution
- Step 1: Write the proportion equation
28,890,480.54 : 39,868,716.24 = 15,659,604.12 : x - Step 2: Convert to fraction form
28,890,480.54/39,868,716.24 = 15,659,604.12/x - Step 3: Cross multiply
28,890,480.54x = 39,868,716.24 × 15,659,604.12 - Step 4: Simplify right side
28,890,480.54x = 624,328,313,091,014.88 - Step 5: Solve for x
x = 624,328,313,091,014.88/28,890,480.54 - Step 6: Final answer
x = 21,610,174.06
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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.