Finding the Fourth Proportional to 138,808,240.56, 206,971,378.32 and 134,994,570.11
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Solution
The fourth proportional to 138,808,240.56, 206,971,378.32 and 134,994,570.11 is: 201,284,967.87
Step by Step Solution
- Step 1: Write the proportion equation
138,808,240.56 : 206,971,378.32 = 134,994,570.11 : x - Step 2: Convert to fraction form
138,808,240.56/206,971,378.32 = 134,994,570.11/x - Step 3: Cross multiply
138,808,240.56x = 206,971,378.32 × 134,994,570.11 - Step 4: Simplify right side
138,808,240.56x = 27,940,012,240,871,416 - Step 5: Solve for x
x = 27,940,012,240,871,416/138,808,240.56 - Step 6: Final answer
x = 201,284,967.87
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.