Finding the Fourth Proportional to 128,640,811.14, 192,969,614.84 and 94,200,285.06
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Solution
The fourth proportional to 128,640,811.14, 192,969,614.84 and 94,200,285.06 is: 141,306,577.32
Step by Step Solution
- Step 1: Write the proportion equation
128,640,811.14 : 192,969,614.84 = 94,200,285.06 : x - Step 2: Convert to fraction form
128,640,811.14/192,969,614.84 = 94,200,285.06/x - Step 3: Cross multiply
128,640,811.14x = 192,969,614.84 × 94,200,285.06 - Step 4: Simplify right side
128,640,811.14x = 18,177,792,725,375,408 - Step 5: Solve for x
x = 18,177,792,725,375,408/128,640,811.14 - Step 6: Final answer
x = 141,306,577.32
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.