Finding the Fourth Proportional to 122,485,536.90, 183,728,305.35 and 31,609,125.90
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Solution
The fourth proportional to 122,485,536.90, 183,728,305.35 and 31,609,125.90 is: 47,413,688.85
Step by Step Solution
- Step 1: Write the proportion equation
122,485,536.90 : 183,728,305.35 = 31,609,125.90 : x - Step 2: Convert to fraction form
122,485,536.90/183,728,305.35 = 31,609,125.90/x - Step 3: Cross multiply
122,485,536.90x = 183,728,305.35 × 31,609,125.90 - Step 4: Simplify right side
122,485,536.90x = 5,807,491,135,201,793 - Step 5: Solve for x
x = 5,807,491,135,201,793/122,485,536.90 - Step 6: Final answer
x = 47,413,688.85
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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.