Finding the Fourth Proportional to 192,455,999.70, 288,683,999.55 and 84,960,575.70
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Solution
The fourth proportional to 192,455,999.70, 288,683,999.55 and 84,960,575.70 is: 127,440,863.55
Step by Step Solution
- Step 1: Write the proportion equation
192,455,999.70 : 288,683,999.55 = 84,960,575.70 : x - Step 2: Convert to fraction form
192,455,999.70/288,683,999.55 = 84,960,575.70/x - Step 3: Cross multiply
192,455,999.70x = 288,683,999.55 × 84,960,575.70 - Step 4: Simplify right side
192,455,999.70x = 24,526,758,797,146,544 - Step 5: Solve for x
x = 24,526,758,797,146,544/192,455,999.70 - Step 6: Final answer
x = 127,440,863.55
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1.5x scale
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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.