Finding the Fourth Proportional to 30,177,985.38, 41,646,625.76 and 16,949,493.48
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Solution
The fourth proportional to 30,177,985.38, 41,646,625.76 and 16,949,493.48 is: 23,390,865.99
Step by Step Solution
- Step 1: Write the proportion equation
30,177,985.38 : 41,646,625.76 = 16,949,493.48 : x - Step 2: Convert to fraction form
30,177,985.38/41,646,625.76 = 16,949,493.48/x - Step 3: Cross multiply
30,177,985.38x = 41,646,625.76 × 16,949,493.48 - Step 4: Simplify right side
30,177,985.38x = 705,889,211,783,120 - Step 5: Solve for x
x = 705,889,211,783,120/30,177,985.38 - Step 6: Final answer
x = 23,390,865.99
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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.