Finding the Fourth Proportional to 99,034,821.50, 136,665,390.92 and 59,364,762.08
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Solution
The fourth proportional to 99,034,821.50, 136,665,390.92 and 59,364,762.08 is: 81,921,775.53
Step by Step Solution
- Step 1: Write the proportion equation
99,034,821.50 : 136,665,390.92 = 59,364,762.08 : x - Step 2: Convert to fraction form
99,034,821.50/136,665,390.92 = 59,364,762.08/x - Step 3: Cross multiply
99,034,821.50x = 136,665,390.92 × 59,364,762.08 - Step 4: Simplify right side
99,034,821.50x = 8,113,108,416,535,991 - Step 5: Solve for x
x = 8,113,108,416,535,991/99,034,821.50 - Step 6: Final answer
x = 81,921,775.53
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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.