Finding the Fourth Proportional to 13,902,113.38, 19,186,049.36 and 7,709,102.10
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Solution
The fourth proportional to 13,902,113.38, 19,186,049.36 and 7,709,102.10 is: 10,639,189.12
Step by Step Solution
- Step 1: Write the proportion equation
13,902,113.38 : 19,186,049.36 = 7,709,102.10 : x - Step 2: Convert to fraction form
13,902,113.38/19,186,049.36 = 7,709,102.10/x - Step 3: Cross multiply
13,902,113.38x = 19,186,049.36 × 7,709,102.10 - Step 4: Simplify right side
13,902,113.38x = 147,907,213,387,788.69 - Step 5: Solve for x
x = 147,907,213,387,788.69/13,902,113.38 - Step 6: Final answer
x = 10,639,189.12
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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.