Finding the Fourth Proportional to 13,610,923.62, 18,782,838.09 and 7,416,021.24
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Solution
The fourth proportional to 13,610,923.62, 18,782,838.09 and 7,416,021.24 is: 10,233,980.45
Step by Step Solution
- Step 1: Write the proportion equation
13,610,923.62 : 18,782,838.09 = 7,416,021.24 : x - Step 2: Convert to fraction form
13,610,923.62/18,782,838.09 = 7,416,021.24/x - Step 3: Cross multiply
13,610,923.62x = 18,782,838.09 × 7,416,021.24 - Step 4: Simplify right side
13,610,923.62x = 139,293,926,222,921.03 - Step 5: Solve for x
x = 139,293,926,222,921.03/13,610,923.62 - Step 6: Final answer
x = 10,233,980.45
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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.