Finding the Fourth Proportional to 314,560,823.80, 471,841,235.70 and 211,768,324.60
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Solution
The fourth proportional to 314,560,823.80, 471,841,235.70 and 211,768,324.60 is: 317,652,486.90
Step by Step Solution
- Step 1: Write the proportion equation
314,560,823.80 : 471,841,235.70 = 211,768,324.60 : x - Step 2: Convert to fraction form
314,560,823.80/471,841,235.70 = 211,768,324.60/x - Step 3: Cross multiply
314,560,823.80x = 471,841,235.70 × 211,768,324.60 - Step 4: Simplify right side
314,560,823.80x = 99,921,027,961,382,704 - Step 5: Solve for x
x = 99,921,027,961,382,704/314,560,823.80 - Step 6: Final answer
x = 317,652,486.90
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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.