Finding the Fourth Proportional to 122,486,245.60, 183,725,431.80 and 40,608,902.20
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Solution
The fourth proportional to 122,486,245.60, 183,725,431.80 and 40,608,902.20 is: 60,912,048.17
Step by Step Solution
- Step 1: Write the proportion equation
122,486,245.60 : 183,725,431.80 = 40,608,902.20 : x - Step 2: Convert to fraction form
122,486,245.60/183,725,431.80 = 40,608,902.20/x - Step 3: Cross multiply
122,486,245.60x = 183,725,431.80 × 40,608,902.20 - Step 4: Simplify right side
122,486,245.60x = 7,460,888,091,618,971 - Step 5: Solve for x
x = 7,460,888,091,618,971/122,486,245.60 - Step 6: Final answer
x = 60,912,048.17
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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.