Finding the Fourth Proportional to 13,145,737.38, 18,141,125.27 and 7,344,519.12
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Solution
The fourth proportional to 13,145,737.38, 18,141,125.27 and 7,344,519.12 is: 10,135,440.68
Step by Step Solution
- Step 1: Write the proportion equation
13,145,737.38 : 18,141,125.27 = 7,344,519.12 : x - Step 2: Convert to fraction form
13,145,737.38/18,141,125.27 = 7,344,519.12/x - Step 3: Cross multiply
13,145,737.38x = 18,141,125.27 × 7,344,519.12 - Step 4: Simplify right side
13,145,737.38x = 133,237,841,403,830.16 - Step 5: Solve for x
x = 133,237,841,403,830.16/13,145,737.38 - Step 6: Final answer
x = 10,135,440.68
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1.5x scale
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.