Finding the Fourth Proportional to 128,164,809.60, 192,265,876.80 and 41,882,313.60
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Solution
The fourth proportional to 128,164,809.60, 192,265,876.80 and 41,882,313.60 is: 62,829,568.99
Step by Step Solution
- Step 1: Write the proportion equation
128,164,809.60 : 192,265,876.80 = 41,882,313.60 : x - Step 2: Convert to fraction form
128,164,809.60/192,265,876.80 = 41,882,313.60/x - Step 3: Cross multiply
128,164,809.60x = 192,265,876.80 × 41,882,313.60 - Step 4: Simplify right side
128,164,809.60x = 8,052,539,746,716,565 - Step 5: Solve for x
x = 8,052,539,746,716,565/128,164,809.60 - Step 6: Final answer
x = 62,829,568.99
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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.