Finding the Fourth Proportional to 100,106,329.70, 140,350,415.50 and 100,106,329.70
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Solution
The fourth proportional to 100,106,329.70, 140,350,415.50 and 100,106,329.70 is: 140,350,415.50
Step by Step Solution
- Step 1: Write the proportion equation
100,106,329.70 : 140,350,415.50 = 100,106,329.70 : x - Step 2: Convert to fraction form
100,106,329.70/140,350,415.50 = 100,106,329.70/x - Step 3: Cross multiply
100,106,329.70x = 140,350,415.50 × 100,106,329.70 - Step 4: Simplify right side
100,106,329.70x = 14,049,964,967,574,990 - Step 5: Solve for x
x = 14,049,964,967,574,990/100,106,329.70 - Step 6: Final answer
x = 140,350,415.50
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.