Finding the Fourth Proportional to 74,399,136.87, 102,519,394.14 and 57,551,524.53
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Solution
The fourth proportional to 74,399,136.87, 102,519,394.14 and 57,551,524.53 is: 79,303,976.83
Step by Step Solution
- Step 1: Write the proportion equation
74,399,136.87 : 102,519,394.14 = 57,551,524.53 : x - Step 2: Convert to fraction form
74,399,136.87/102,519,394.14 = 57,551,524.53/x - Step 3: Cross multiply
74,399,136.87x = 102,519,394.14 × 57,551,524.53 - Step 4: Simplify right side
74,399,136.87x = 5,900,147,426,219,196 - Step 5: Solve for x
x = 5,900,147,426,219,196/74,399,136.87 - Step 6: Final answer
x = 79,303,976.83
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.