Finding the Fourth Proportional to 629,871,715.80, 944,807,573.70 and 199,050,211.80
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Solution
The fourth proportional to 629,871,715.80, 944,807,573.70 and 199,050,211.80 is: 298,575,317.70
Step by Step Solution
- Step 1: Write the proportion equation
629,871,715.80 : 944,807,573.70 = 199,050,211.80 : x - Step 2: Convert to fraction form
629,871,715.80/944,807,573.70 = 199,050,211.80/x - Step 3: Cross multiply
629,871,715.80x = 944,807,573.70 × 199,050,211.80 - Step 4: Simplify right side
629,871,715.80x = 188,064,147,655,229,120 - Step 5: Solve for x
x = 188,064,147,655,229,120/629,871,715.80 - Step 6: Final answer
x = 298,575,317.70
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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.