Finding the Fourth Proportional to 120,989,027.70, 181,483,541.55 and 120,989,027.70
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Solution
The fourth proportional to 120,989,027.70, 181,483,541.55 and 120,989,027.70 is: 181,483,541.55
Step by Step Solution
- Step 1: Write the proportion equation
120,989,027.70 : 181,483,541.55 = 120,989,027.70 : x - Step 2: Convert to fraction form
120,989,027.70/181,483,541.55 = 120,989,027.70/x - Step 3: Cross multiply
120,989,027.70x = 181,483,541.55 × 120,989,027.70 - Step 4: Simplify right side
120,989,027.70x = 21,957,517,235,687,052 - Step 5: Solve for x
x = 21,957,517,235,687,052/120,989,027.70 - Step 6: Final answer
x = 181,483,541.55
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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.