Finding the Fourth Proportional to 87,161,136.24, 120,280,900.68 and 48,006,559.20
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Solution
The fourth proportional to 87,161,136.24, 120,280,900.68 and 48,006,559.20 is: 66,248,243.52
Step by Step Solution
- Step 1: Write the proportion equation
87,161,136.24 : 120,280,900.68 = 48,006,559.20 : x - Step 2: Convert to fraction form
87,161,136.24/120,280,900.68 = 48,006,559.20/x - Step 3: Cross multiply
87,161,136.24x = 120,280,900.68 × 48,006,559.20 - Step 4: Simplify right side
87,161,136.24x = 5,774,272,179,123,741 - Step 5: Solve for x
x = 5,774,272,179,123,741/87,161,136.24 - Step 6: Final answer
x = 66,248,243.52
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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.