Finding the Fourth Proportional to 28,586,910.77, 39,449,906.76 and 15,534,138.44
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Solution
The fourth proportional to 28,586,910.77, 39,449,906.76 and 15,534,138.44 is: 21,437,094.68
Step by Step Solution
- Step 1: Write the proportion equation
28,586,910.77 : 39,449,906.76 = 15,534,138.44 : x - Step 2: Convert to fraction form
28,586,910.77/39,449,906.76 = 15,534,138.44/x - Step 3: Cross multiply
28,586,910.77x = 39,449,906.76 × 15,534,138.44 - Step 4: Simplify right side
28,586,910.77x = 612,820,312,946,206.38 - Step 5: Solve for x
x = 612,820,312,946,206.38/28,586,910.77 - Step 6: Final answer
x = 21,437,094.68
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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.