Finding the Fourth Proportional to 128,325,699.20, 192,488,548.80 and 94,313,475.20
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Solution
The fourth proportional to 128,325,699.20, 192,488,548.80 and 94,313,475.20 is: 141,470,212.80
Step by Step Solution
- Step 1: Write the proportion equation
128,325,699.20 : 192,488,548.80 = 94,313,475.20 : x - Step 2: Convert to fraction form
128,325,699.20/192,488,548.80 = 94,313,475.20/x - Step 3: Cross multiply
128,325,699.20x = 192,488,548.80 × 94,313,475.20 - Step 4: Simplify right side
128,325,699.20x = 18,154,263,973,532,792 - Step 5: Solve for x
x = 18,154,263,973,532,792/128,325,699.20 - Step 6: Final answer
x = 141,470,212.80
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1.5x scale
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.