Finding the Fourth Proportional to 129,435,768.16, 194,154,378 and 43,173,938.14
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Solution
The fourth proportional to 129,435,768.16, 194,154,378 and 43,173,938.14 is: 64,761,149.29
Step by Step Solution
- Step 1: Write the proportion equation
129,435,768.16 : 194,154,378 = 43,173,938.14 : x - Step 2: Convert to fraction form
129,435,768.16/194,154,378 = 43,173,938.14/x - Step 3: Cross multiply
129,435,768.16x = 194,154,378 × 43,173,938.14 - Step 4: Simplify right side
129,435,768.16x = 8,382,409,105,382,177 - Step 5: Solve for x
x = 8,382,409,105,382,177/129,435,768.16 - Step 6: Final answer
x = 64,761,149.29
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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.