Finding the Fourth Proportional to 81,657,497.40, 122,483,621.70 and 27,072,601.80
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Solution
The fourth proportional to 81,657,497.40, 122,483,621.70 and 27,072,601.80 is: 40,608,032.61
Step by Step Solution
- Step 1: Write the proportion equation
81,657,497.40 : 122,483,621.70 = 27,072,601.80 : x - Step 2: Convert to fraction form
81,657,497.40/122,483,621.70 = 27,072,601.80/x - Step 3: Cross multiply
81,657,497.40x = 122,483,621.70 × 27,072,601.80 - Step 4: Simplify right side
81,657,497.40x = 3,315,950,317,305,939 - Step 5: Solve for x
x = 3,315,950,317,305,939/81,657,497.40 - Step 6: Final answer
x = 40,608,032.61
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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.