Finding the Fourth Proportional to 81,289,311.40, 112,179,355.68 and 44,119,589.68
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Solution
The fourth proportional to 81,289,311.40, 112,179,355.68 and 44,119,589.68 is: 60,885,091.26
Step by Step Solution
- Step 1: Write the proportion equation
81,289,311.40 : 112,179,355.68 = 44,119,589.68 : x - Step 2: Convert to fraction form
81,289,311.40/112,179,355.68 = 44,119,589.68/x - Step 3: Cross multiply
81,289,311.40x = 112,179,355.68 × 44,119,589.68 - Step 4: Simplify right side
81,289,311.40x = 4,949,307,143,168,378 - Step 5: Solve for x
x = 4,949,307,143,168,378/81,289,311.40 - Step 6: Final answer
x = 60,885,091.26
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.