Finding the Fourth Proportional to 13,658,375.31, 18,848,330.26 and 7,463,285.93
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Solution
The fourth proportional to 13,658,375.31, 18,848,330.26 and 7,463,285.93 is: 10,299,210.17
Step by Step Solution
- Step 1: Write the proportion equation
13,658,375.31 : 18,848,330.26 = 7,463,285.93 : x - Step 2: Convert to fraction form
13,658,375.31/18,848,330.26 = 7,463,285.93/x - Step 3: Cross multiply
13,658,375.31x = 18,848,330.26 × 7,463,285.93 - Step 4: Simplify right side
13,658,375.31x = 140,670,477,939,209.59 - Step 5: Solve for x
x = 140,670,477,939,209.59/13,658,375.31 - Step 6: Final answer
x = 10,299,210.17
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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.