Finding the Fourth Proportional to 324,634,212.72, 447,947,382.60 and 197,409,988.08
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Solution
The fourth proportional to 324,634,212.72, 447,947,382.60 and 197,409,988.08 is: 272,396,697.56
Step by Step Solution
- Step 1: Write the proportion equation
324,634,212.72 : 447,947,382.60 = 197,409,988.08 : x - Step 2: Convert to fraction form
324,634,212.72/447,947,382.60 = 197,409,988.08/x - Step 3: Cross multiply
324,634,212.72x = 447,947,382.60 × 197,409,988.08 - Step 4: Simplify right side
324,634,212.72x = 88,429,287,459,533,216 - Step 5: Solve for x
x = 88,429,287,459,533,216/324,634,212.72 - Step 6: Final answer
x = 272,396,697.56
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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.