Finding the Fourth Proportional to 128,130,496.64, 192,220,472.70 and 41,845,706.72
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Solution
The fourth proportional to 128,130,496.64, 192,220,472.70 and 41,845,706.72 is: 62,776,635.83
Step by Step Solution
- Step 1: Write the proportion equation
128,130,496.64 : 192,220,472.70 = 41,845,706.72 : x - Step 2: Convert to fraction form
128,130,496.64/192,220,472.70 = 41,845,706.72/x - Step 3: Cross multiply
128,130,496.64x = 192,220,472.70 × 41,845,706.72 - Step 4: Simplify right side
128,130,496.64x = 8,043,601,526,183,966 - Step 5: Solve for x
x = 8,043,601,526,183,966/128,130,496.64 - Step 6: Final answer
x = 62,776,635.83
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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.