Finding the Fourth Proportional to 128,007,192.60, 176,650,391.16 and 69,269,851.08
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Solution
The fourth proportional to 128,007,192.60, 176,650,391.16 and 69,269,851.08 is: 95,592,646.32
Step by Step Solution
- Step 1: Write the proportion equation
128,007,192.60 : 176,650,391.16 = 69,269,851.08 : x - Step 2: Convert to fraction form
128,007,192.60/176,650,391.16 = 69,269,851.08/x - Step 3: Cross multiply
128,007,192.60x = 176,650,391.16 × 69,269,851.08 - Step 4: Simplify right side
128,007,192.60x = 12,236,546,288,876,948 - Step 5: Solve for x
x = 12,236,546,288,876,948/128,007,192.60 - Step 6: Final answer
x = 95,592,646.32
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.