Finding the Fourth Proportional to 403,603,170.12, 556,972,353.42 and 217,964,167.92
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Solution
The fourth proportional to 403,603,170.12, 556,972,353.42 and 217,964,167.92 is: 300,790,540.20
Step by Step Solution
- Step 1: Write the proportion equation
403,603,170.12 : 556,972,353.42 = 217,964,167.92 : x - Step 2: Convert to fraction form
403,603,170.12/556,972,353.42 = 217,964,167.92/x - Step 3: Cross multiply
403,603,170.12x = 556,972,353.42 × 217,964,167.92 - Step 4: Simplify right side
403,603,170.12x = 121,400,015,567,634,448 - Step 5: Solve for x
x = 121,400,015,567,634,448/403,603,170.12 - Step 6: Final answer
x = 300,790,540.20
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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.