Finding the Fourth Proportional to 121,277,349.40, 181,916,024.10 and 48,458,122.60
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Solution
The fourth proportional to 121,277,349.40, 181,916,024.10 and 48,458,122.60 is: 72,687,183.90
Step by Step Solution
- Step 1: Write the proportion equation
121,277,349.40 : 181,916,024.10 = 48,458,122.60 : x - Step 2: Convert to fraction form
121,277,349.40/181,916,024.10 = 48,458,122.60/x - Step 3: Cross multiply
121,277,349.40x = 181,916,024.10 × 48,458,122.60 - Step 4: Simplify right side
121,277,349.40x = 8,815,308,998,742,355 - Step 5: Solve for x
x = 8,815,308,998,742,355/121,277,349.40 - Step 6: Final answer
x = 72,687,183.90
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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.