Finding the Fourth Proportional to 236,212,346.40, 354,318,519.60 and 213,537,530.40
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Solution
The fourth proportional to 236,212,346.40, 354,318,519.60 and 213,537,530.40 is: 320,306,295.60
Step by Step Solution
- Step 1: Write the proportion equation
236,212,346.40 : 354,318,519.60 = 213,537,530.40 : x - Step 2: Convert to fraction form
236,212,346.40/354,318,519.60 = 213,537,530.40/x - Step 3: Cross multiply
236,212,346.40x = 354,318,519.60 × 213,537,530.40 - Step 4: Simplify right side
236,212,346.40x = 75,660,301,650,368,000 - Step 5: Solve for x
x = 75,660,301,650,368,000/236,212,346.40 - Step 6: Final answer
x = 320,306,295.60
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1.5x scale
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.