Finding the Fourth Proportional to 87,660,715.42, 120,975,356.56 and 48,501,857.98
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Solution
The fourth proportional to 87,660,715.42, 120,975,356.56 and 48,501,857.98 is: 66,934,538.86
Step by Step Solution
- Step 1: Write the proportion equation
87,660,715.42 : 120,975,356.56 = 48,501,857.98 : x - Step 2: Convert to fraction form
87,660,715.42/120,975,356.56 = 48,501,857.98/x - Step 3: Cross multiply
87,660,715.42x = 120,975,356.56 × 48,501,857.98 - Step 4: Simplify right side
87,660,715.42x = 5,867,529,562,952,981 - Step 5: Solve for x
x = 5,867,529,562,952,981/87,660,715.42 - Step 6: Final answer
x = 66,934,538.86
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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.