Finding the Fourth Proportional to 163,372,722.20, 245,131,450.49 and 85,631,150.53
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Solution
The fourth proportional to 163,372,722.20, 245,131,450.49 and 85,631,150.53 is: 128,484,656.77
Step by Step Solution
- Step 1: Write the proportion equation
163,372,722.20 : 245,131,450.49 = 85,631,150.53 : x - Step 2: Convert to fraction form
163,372,722.20/245,131,450.49 = 85,631,150.53/x - Step 3: Cross multiply
163,372,722.20x = 245,131,450.49 × 85,631,150.53 - Step 4: Simplify right side
163,372,722.20x = 20,990,888,136,147,684 - Step 5: Solve for x
x = 20,990,888,136,147,684/163,372,722.20 - Step 6: Final answer
x = 128,484,656.77
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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.