Finding the Fourth Proportional to 86,409,469.16, 129,295,338.98 and 51,886,895.74
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Solution
The fourth proportional to 86,409,469.16, 129,295,338.98 and 51,886,895.74 is: 77,638,872.67
Step by Step Solution
- Step 1: Write the proportion equation
86,409,469.16 : 129,295,338.98 = 51,886,895.74 : x - Step 2: Convert to fraction form
86,409,469.16/129,295,338.98 = 51,886,895.74/x - Step 3: Cross multiply
86,409,469.16x = 129,295,338.98 × 51,886,895.74 - Step 4: Simplify right side
86,409,469.16x = 6,708,733,773,323,218 - Step 5: Solve for x
x = 6,708,733,773,323,218/86,409,469.16 - Step 6: Final answer
x = 77,638,872.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.