Finding the Fourth Proportional to 13,142,737.92, 18,136,977.26 and 7,341,519.62
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Solution
The fourth proportional to 13,142,737.92, 18,136,977.26 and 7,341,519.62 is: 10,131,296.47
Step by Step Solution
- Step 1: Write the proportion equation
13,142,737.92 : 18,136,977.26 = 7,341,519.62 : x - Step 2: Convert to fraction form
13,142,737.92/18,136,977.26 = 7,341,519.62/x - Step 3: Cross multiply
13,142,737.92x = 18,136,977.26 × 7,341,519.62 - Step 4: Simplify right side
13,142,737.92x = 133,152,974,274,391.36 - Step 5: Solve for x
x = 133,152,974,274,391.36/13,142,737.92 - Step 6: Final answer
x = 10,131,296.47
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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.