Finding the Fourth Proportional to 20,048,693.13, 30,085,690.82 and 8,534,142.99
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Solution
The fourth proportional to 20,048,693.13, 30,085,690.82 and 8,534,142.99 is: 12,806,599.70
Step by Step Solution
- Step 1: Write the proportion equation
20,048,693.13 : 30,085,690.82 = 8,534,142.99 : x - Step 2: Convert to fraction form
20,048,693.13/30,085,690.82 = 8,534,142.99/x - Step 3: Cross multiply
20,048,693.13x = 30,085,690.82 × 8,534,142.99 - Step 4: Simplify right side
20,048,693.13x = 256,755,587,368,139.66 - Step 5: Solve for x
x = 256,755,587,368,139.66/20,048,693.13 - Step 6: Final answer
x = 12,806,599.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.