Finding the Fourth Proportional to 193,536,989.20, 290,438,194.20 and 85,908,854.80
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Solution
The fourth proportional to 193,536,989.20, 290,438,194.20 and 85,908,854.80 is: 128,922,190.83
Step by Step Solution
- Step 1: Write the proportion equation
193,536,989.20 : 290,438,194.20 = 85,908,854.80 : x - Step 2: Convert to fraction form
193,536,989.20/290,438,194.20 = 85,908,854.80/x - Step 3: Cross multiply
193,536,989.20x = 290,438,194.20 × 85,908,854.80 - Step 4: Simplify right side
193,536,989.20x = 24,951,212,653,902,000 - Step 5: Solve for x
x = 24,951,212,653,902,000/193,536,989.20 - Step 6: Final answer
x = 128,922,190.83
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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.