Finding the Fourth Proportional to 68,640,404.09, 94,729,599.50 and 38,876,346.92
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Solution
The fourth proportional to 68,640,404.09, 94,729,599.50 and 38,876,346.92 is: 53,652,667.44
Step by Step Solution
- Step 1: Write the proportion equation
68,640,404.09 : 94,729,599.50 = 38,876,346.92 : x - Step 2: Convert to fraction form
68,640,404.09/94,729,599.50 = 38,876,346.92/x - Step 3: Cross multiply
68,640,404.09x = 94,729,599.50 × 38,876,346.92 - Step 4: Simplify right side
68,640,404.09x = 3,682,740,773,086,629 - Step 5: Solve for x
x = 3,682,740,773,086,629/68,640,404.09 - Step 6: Final answer
x = 53,652,667.44
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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.