Finding the Fourth Proportional to 11,198,609.23, 15,445,829.94 and 8,445,412.68
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Solution
The fourth proportional to 11,198,609.23, 15,445,829.94 and 8,445,412.68 is: 11,648,447.17
Step by Step Solution
- Step 1: Write the proportion equation
11,198,609.23 : 15,445,829.94 = 8,445,412.68 : x - Step 2: Convert to fraction form
11,198,609.23/15,445,829.94 = 8,445,412.68/x - Step 3: Cross multiply
11,198,609.23x = 15,445,829.94 × 8,445,412.68 - Step 4: Simplify right side
11,198,609.23x = 130,446,408,028,399.62 - Step 5: Solve for x
x = 130,446,408,028,399.62/11,198,609.23 - Step 6: Final answer
x = 11,648,447.17
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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.