Finding the Fourth Proportional to 286,440,826.08, 394,975,538.64 and 193,459,906.56
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Solution
The fourth proportional to 286,440,826.08, 394,975,538.64 and 193,459,906.56 is: 266,763,407.45
Step by Step Solution
- Step 1: Write the proportion equation
286,440,826.08 : 394,975,538.64 = 193,459,906.56 : x - Step 2: Convert to fraction form
286,440,826.08/394,975,538.64 = 193,459,906.56/x - Step 3: Cross multiply
286,440,826.08x = 394,975,538.64 × 193,459,906.56 - Step 4: Simplify right side
286,440,826.08x = 76,411,930,798,780,064 - Step 5: Solve for x
x = 76,411,930,798,780,064/286,440,826.08 - Step 6: Final answer
x = 266,763,407.45
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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.