Finding the Fourth Proportional to 12,419,831.97, 18,628,680.69 and 7,560,877.32
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Solution
The fourth proportional to 12,419,831.97, 18,628,680.69 and 7,560,877.32 is: 11,340,666.26
Step by Step Solution
- Step 1: Write the proportion equation
12,419,831.97 : 18,628,680.69 = 7,560,877.32 : x - Step 2: Convert to fraction form
12,419,831.97/18,628,680.69 = 7,560,877.32/x - Step 3: Cross multiply
12,419,831.97x = 18,628,680.69 × 7,560,877.32 - Step 4: Simplify right side
12,419,831.97x = 140,849,169,330,542.97 - Step 5: Solve for x
x = 140,849,169,330,542.97/12,419,831.97 - Step 6: Final answer
x = 11,340,666.26
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.