Finding the Fourth Proportional to 13,385,623.75, 18,473,735.43 and 7,953,115.75
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Solution
The fourth proportional to 13,385,623.75, 18,473,735.43 and 7,953,115.75 is: 10,976,235.32
Step by Step Solution
- Step 1: Write the proportion equation
13,385,623.75 : 18,473,735.43 = 7,953,115.75 : x - Step 2: Convert to fraction form
13,385,623.75/18,473,735.43 = 7,953,115.75/x - Step 3: Cross multiply
13,385,623.75x = 18,473,735.43 × 7,953,115.75 - Step 4: Simplify right side
13,385,623.75x = 146,923,756,209,666.03 - Step 5: Solve for x
x = 146,923,756,209,666.03/13,385,623.75 - Step 6: Final answer
x = 10,976,235.32
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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.