Finding the Fourth Proportional to 122,987,757.50, 169,723,447.43 and 67,233,851.63
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Solution
The fourth proportional to 122,987,757.50, 169,723,447.43 and 67,233,851.63 is: 92,782,902.25
Step by Step Solution
- Step 1: Write the proportion equation
122,987,757.50 : 169,723,447.43 = 67,233,851.63 : x - Step 2: Convert to fraction form
122,987,757.50/169,723,447.43 = 67,233,851.63/x - Step 3: Cross multiply
122,987,757.50x = 169,723,447.43 × 67,233,851.63 - Step 4: Simplify right side
122,987,757.50x = 11,411,161,081,455,940 - Step 5: Solve for x
x = 11,411,161,081,455,940/122,987,757.50 - Step 6: Final answer
x = 92,782,902.25
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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.