Finding the Fourth Proportional to 18,122,512.60, 27,183,768.90 and 10,060,355.80
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Solution
The fourth proportional to 18,122,512.60, 27,183,768.90 and 10,060,355.80 is: 15,090,533.70
Step by Step Solution
- Step 1: Write the proportion equation
18,122,512.60 : 27,183,768.90 = 10,060,355.80 : x - Step 2: Convert to fraction form
18,122,512.60/27,183,768.90 = 10,060,355.80/x - Step 3: Cross multiply
18,122,512.60x = 27,183,768.90 × 10,060,355.80 - Step 4: Simplify right side
18,122,512.60x = 273,478,387,118,974.62 - Step 5: Solve for x
x = 273,478,387,118,974.62/18,122,512.60 - Step 6: Final answer
x = 15,090,533.70
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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.