Finding the Fourth Proportional to 5,207,815.56, 7,811,334.54 and 1,613,610.12
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Solution
The fourth proportional to 5,207,815.56, 7,811,334.54 and 1,613,610.12 is: 2,420,294.71
Step by Step Solution
- Step 1: Write the proportion equation
5,207,815.56 : 7,811,334.54 = 1,613,610.12 : x - Step 2: Convert to fraction form
5,207,815.56/7,811,334.54 = 1,613,610.12/x - Step 3: Cross multiply
5,207,815.56x = 7,811,334.54 × 1,613,610.12 - Step 4: Simplify right side
5,207,815.56x = 12,604,448,464,449.54 - Step 5: Solve for x
x = 12,604,448,464,449.54/5,207,815.56 - Step 6: Final answer
x = 2,420,294.71
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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.