Finding the Fourth Proportional to 428,426,610.96, 591,241,194.24 and 242,781,453.84
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Solution
The fourth proportional to 428,426,610.96, 591,241,194.24 and 242,781,453.84 is: 335,045,473.45
Step by Step Solution
- Step 1: Write the proportion equation
428,426,610.96 : 591,241,194.24 = 242,781,453.84 : x - Step 2: Convert to fraction form
428,426,610.96/591,241,194.24 = 242,781,453.84/x - Step 3: Cross multiply
428,426,610.96x = 591,241,194.24 × 242,781,453.84 - Step 4: Simplify right side
428,426,610.96x = 143,542,396,707,685,040 - Step 5: Solve for x
x = 143,542,396,707,685,040/428,426,610.96 - Step 6: Final answer
x = 335,045,473.45
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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.