Finding the Fourth Proportional to 75,765,178.26, 104,584,378.53 and 49,661,377.62
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Solution
The fourth proportional to 75,765,178.26, 104,584,378.53 and 49,661,377.62 is: 68,551,337.63
Step by Step Solution
- Step 1: Write the proportion equation
75,765,178.26 : 104,584,378.53 = 49,661,377.62 : x - Step 2: Convert to fraction form
75,765,178.26/104,584,378.53 = 49,661,377.62/x - Step 3: Cross multiply
75,765,178.26x = 104,584,378.53 × 49,661,377.62 - Step 4: Simplify right side
75,765,178.26x = 5,193,804,315,331,350 - Step 5: Solve for x
x = 5,193,804,315,331,350/75,765,178.26 - Step 6: Final answer
x = 68,551,337.63
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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.