Finding the Fourth Proportional to 87,239,453.90, 120,390,082.58 and 48,081,137.19
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Solution
The fourth proportional to 87,239,453.90, 120,390,082.58 and 48,081,137.19 is: 66,351,768.82
Step by Step Solution
- Step 1: Write the proportion equation
87,239,453.90 : 120,390,082.58 = 48,081,137.19 : x - Step 2: Convert to fraction form
87,239,453.90/120,390,082.58 = 48,081,137.19/x - Step 3: Cross multiply
87,239,453.90x = 120,390,082.58 × 48,081,137.19 - Step 4: Simplify right side
87,239,453.90x = 5,788,492,076,513,149 - Step 5: Solve for x
x = 5,788,492,076,513,149/87,239,453.90 - Step 6: Final answer
x = 66,351,768.82
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.