Finding the Fourth Proportional to 5,135,012.42, 7,086,404.14 and 2,811,867.62
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Solution
The fourth proportional to 5,135,012.42, 7,086,404.14 and 2,811,867.62 is: 3,880,424.95
Step by Step Solution
- Step 1: Write the proportion equation
5,135,012.42 : 7,086,404.14 = 2,811,867.62 : x - Step 2: Convert to fraction form
5,135,012.42/7,086,404.14 = 2,811,867.62/x - Step 3: Cross multiply
5,135,012.42x = 7,086,404.14 × 2,811,867.62 - Step 4: Simplify right side
5,135,012.42x = 19,926,030,301,038.26 - Step 5: Solve for x
x = 19,926,030,301,038.26/5,135,012.42 - Step 6: Final answer
x = 3,880,424.95
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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.