Finding the Fourth Proportional to 106,812,122.40, 160,218,183.60 and 70,910,330.40
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Solution
The fourth proportional to 106,812,122.40, 160,218,183.60 and 70,910,330.40 is: 106,365,495.60
Step by Step Solution
- Step 1: Write the proportion equation
106,812,122.40 : 160,218,183.60 = 70,910,330.40 : x - Step 2: Convert to fraction form
106,812,122.40/160,218,183.60 = 70,910,330.40/x - Step 3: Cross multiply
106,812,122.40x = 160,218,183.60 × 70,910,330.40 - Step 4: Simplify right side
106,812,122.40x = 11,361,124,335,163,862 - Step 5: Solve for x
x = 11,361,124,335,163,862/106,812,122.40 - Step 6: Final answer
x = 106,365,495.60
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1.5x scale
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.