Finding the Fourth Proportional to 135,629,243.10, 203,187,856.05 and 80,131,480.74
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Solution
The fourth proportional to 135,629,243.10, 203,187,856.05 and 80,131,480.74 is: 120,045,967.98
Step by Step Solution
- Step 1: Write the proportion equation
135,629,243.10 : 203,187,856.05 = 80,131,480.74 : x - Step 2: Convert to fraction form
135,629,243.10/203,187,856.05 = 80,131,480.74/x - Step 3: Cross multiply
135,629,243.10x = 203,187,856.05 × 80,131,480.74 - Step 4: Simplify right side
135,629,243.10x = 16,281,743,773,672,468 - Step 5: Solve for x
x = 16,281,743,773,672,468/135,629,243.10 - Step 6: Final answer
x = 120,045,967.98
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.