Finding the Fourth Proportional to 68,982,840.76, 103,517,339.39 and 45,969,923.09
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Solution
The fourth proportional to 68,982,840.76, 103,517,339.39 and 45,969,923.09 is: 68,983,591.83
Step by Step Solution
- Step 1: Write the proportion equation
68,982,840.76 : 103,517,339.39 = 45,969,923.09 : x - Step 2: Convert to fraction form
68,982,840.76/103,517,339.39 = 45,969,923.09/x - Step 3: Cross multiply
68,982,840.76x = 103,517,339.39 × 45,969,923.09 - Step 4: Simplify right side
68,982,840.76x = 4,758,684,130,408,112 - Step 5: Solve for x
x = 4,758,684,130,408,112/68,982,840.76 - Step 6: Final answer
x = 68,983,591.83
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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.