Finding the Fourth Proportional to 128,317,662.40, 192,476,493.60 and 60,293,214.40
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Solution
The fourth proportional to 128,317,662.40, 192,476,493.60 and 60,293,214.40 is: 90,439,821.60
Step by Step Solution
- Step 1: Write the proportion equation
128,317,662.40 : 192,476,493.60 = 60,293,214.40 : x - Step 2: Convert to fraction form
128,317,662.40/192,476,493.60 = 60,293,214.40/x - Step 3: Cross multiply
128,317,662.40x = 192,476,493.60 × 60,293,214.40 - Step 4: Simplify right side
128,317,662.40x = 11,605,026,495,585,028 - Step 5: Solve for x
x = 11,605,026,495,585,028/128,317,662.40 - Step 6: Final answer
x = 90,439,821.60
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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.