Finding the Fourth Proportional to 76,968,601.74, 106,176,400.65 and 47,590,543.26
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Solution
The fourth proportional to 76,968,601.74, 106,176,400.65 and 47,590,543.26 is: 65,650,050.46
Step by Step Solution
- Step 1: Write the proportion equation
76,968,601.74 : 106,176,400.65 = 47,590,543.26 : x - Step 2: Convert to fraction form
76,968,601.74/106,176,400.65 = 47,590,543.26/x - Step 3: Cross multiply
76,968,601.74x = 106,176,400.65 × 47,590,543.26 - Step 4: Simplify right side
76,968,601.74x = 5,052,992,588,324,917 - Step 5: Solve for x
x = 5,052,992,588,324,917/76,968,601.74 - Step 6: Final answer
x = 65,650,050.46
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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.