Finding the Fourth Proportional to 13,374,732.77, 20,055,775.99 and 5,181,212.91
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Solution
The fourth proportional to 13,374,732.77, 20,055,775.99 and 5,181,212.91 is: 7,769,369.84
Step by Step Solution
- Step 1: Write the proportion equation
13,374,732.77 : 20,055,775.99 = 5,181,212.91 : x - Step 2: Convert to fraction form
13,374,732.77/20,055,775.99 = 5,181,212.91/x - Step 3: Cross multiply
13,374,732.77x = 20,055,775.99 × 5,181,212.91 - Step 4: Simplify right side
13,374,732.77x = 103,913,245,438,613.19 - Step 5: Solve for x
x = 103,913,245,438,613.19/13,374,732.77 - Step 6: Final answer
x = 7,769,369.84
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.