Finding the Fourth Proportional to 128,317,404.65, 192,399,241.79 and 40,841,136.52
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Solution
The fourth proportional to 128,317,404.65, 192,399,241.79 and 40,841,136.52 is: 61,237,239.96
Step by Step Solution
- Step 1: Write the proportion equation
128,317,404.65 : 192,399,241.79 = 40,841,136.52 : x - Step 2: Convert to fraction form
128,317,404.65/192,399,241.79 = 40,841,136.52/x - Step 3: Cross multiply
128,317,404.65x = 192,399,241.79 × 40,841,136.52 - Step 4: Simplify right side
128,317,404.65x = 7,857,803,699,910,983 - Step 5: Solve for x
x = 7,857,803,699,910,983/128,317,404.65 - Step 6: Final answer
x = 61,237,239.96
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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.