Finding the Fourth Proportional to 26,198,517.87, 36,153,107.15 and 15,036,848.28
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Solution
The fourth proportional to 26,198,517.87, 36,153,107.15 and 15,036,848.28 is: 20,750,364.19
Step by Step Solution
- Step 1: Write the proportion equation
26,198,517.87 : 36,153,107.15 = 15,036,848.28 : x - Step 2: Convert to fraction form
26,198,517.87/36,153,107.15 = 15,036,848.28/x - Step 3: Cross multiply
26,198,517.87x = 36,153,107.15 × 15,036,848.28 - Step 4: Simplify right side
26,198,517.87x = 543,628,786,989,949 - Step 5: Solve for x
x = 543,628,786,989,949/26,198,517.87 - Step 6: Final answer
x = 20,750,364.19
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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.