Finding the Fourth Proportional to 125,041,218.76, 172,559,378.56 and 72,833,617.44
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Solution
The fourth proportional to 125,041,218.76, 172,559,378.56 and 72,833,617.44 is: 100,511,846.32
Step by Step Solution
- Step 1: Write the proportion equation
125,041,218.76 : 172,559,378.56 = 72,833,617.44 : x - Step 2: Convert to fraction form
125,041,218.76/172,559,378.56 = 72,833,617.44/x - Step 3: Cross multiply
125,041,218.76x = 172,559,378.56 × 72,833,617.44 - Step 4: Simplify right side
125,041,218.76x = 12,568,123,763,541,094 - Step 5: Solve for x
x = 12,568,123,763,541,094/125,041,218.76 - Step 6: Final answer
x = 100,511,846.32
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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.