Finding the Fourth Proportional to 128,138,173.60, 192,228,203.76 and 41,851,530.40
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Solution
The fourth proportional to 128,138,173.60, 192,228,203.76 and 41,851,530.40 is: 62,784,135.96
Step by Step Solution
- Step 1: Write the proportion equation
128,138,173.60 : 192,228,203.76 = 41,851,530.40 : x - Step 2: Convert to fraction form
128,138,173.60/192,228,203.76 = 41,851,530.40/x - Step 3: Cross multiply
128,138,173.60x = 192,228,203.76 × 41,851,530.40 - Step 4: Simplify right side
128,138,173.60x = 8,045,044,513,399,034 - Step 5: Solve for x
x = 8,045,044,513,399,034/128,138,173.60 - Step 6: Final answer
x = 62,784,135.96
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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.