Finding the Fourth Proportional to 157,534,135.43, 217,381,567.52 and 86,965,163.15
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Solution
The fourth proportional to 157,534,135.43, 217,381,567.52 and 86,965,163.15 is: 120,003,346.79
Step by Step Solution
- Step 1: Write the proportion equation
157,534,135.43 : 217,381,567.52 = 86,965,163.15 : x - Step 2: Convert to fraction form
157,534,135.43/217,381,567.52 = 86,965,163.15/x - Step 3: Cross multiply
157,534,135.43x = 217,381,567.52 × 86,965,163.15 - Step 4: Simplify right side
157,534,135.43x = 18,904,623,484,310,044 - Step 5: Solve for x
x = 18,904,623,484,310,044/157,534,135.43 - Step 6: Final answer
x = 120,003,346.79
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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.