Finding the Fourth Proportional to 139,647,396.58, 192,713,393.80 and 80,944,112.53
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Solution
The fourth proportional to 139,647,396.58, 192,713,393.80 and 80,944,112.53 is: 111,702,867.48
Step by Step Solution
- Step 1: Write the proportion equation
139,647,396.58 : 192,713,393.80 = 80,944,112.53 : x - Step 2: Convert to fraction form
139,647,396.58/192,713,393.80 = 80,944,112.53/x - Step 3: Cross multiply
139,647,396.58x = 192,713,393.80 × 80,944,112.53 - Step 4: Simplify right side
139,647,396.58x = 15,599,014,634,127,478 - Step 5: Solve for x
x = 15,599,014,634,127,478/139,647,396.58 - Step 6: Final answer
x = 111,702,867.48
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.