Finding the Fourth Proportional to 112,208,318.70, 168,170,760.45 and 54,576,494.70
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Solution
The fourth proportional to 112,208,318.70, 168,170,760.45 and 54,576,494.70 is: 81,795,812.67
Step by Step Solution
- Step 1: Write the proportion equation
112,208,318.70 : 168,170,760.45 = 54,576,494.70 : x - Step 2: Convert to fraction form
112,208,318.70/168,170,760.45 = 54,576,494.70/x - Step 3: Cross multiply
112,208,318.70x = 168,170,760.45 × 54,576,494.70 - Step 4: Simplify right side
112,208,318.70x = 9,178,170,616,394,394 - Step 5: Solve for x
x = 9,178,170,616,394,394/112,208,318.70 - Step 6: Final answer
x = 81,795,812.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.