Finding the Fourth Proportional to 671,544,523.10, 926,733,361.34 and 389,341,806.96
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Solution
The fourth proportional to 671,544,523.10, 926,733,361.34 and 389,341,806.96 is: 537,292,806.45
Step by Step Solution
- Step 1: Write the proportion equation
671,544,523.10 : 926,733,361.34 = 389,341,806.96 : x - Step 2: Convert to fraction form
671,544,523.10/926,733,361.34 = 389,341,806.96/x - Step 3: Cross multiply
671,544,523.10x = 926,733,361.34 × 389,341,806.96 - Step 4: Simplify right side
671,544,523.10x = 360,816,041,474,230,208 - Step 5: Solve for x
x = 360,816,041,474,230,208/671,544,523.10 - Step 6: Final answer
x = 537,292,806.45
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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.