Finding the Fourth Proportional to 124,529,236.38, 171,839,036.79 and 69,514,969.50
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Solution
The fourth proportional to 124,529,236.38, 171,839,036.79 and 69,514,969.50 is: 95,924,344.75
Step by Step Solution
- Step 1: Write the proportion equation
124,529,236.38 : 171,839,036.79 = 69,514,969.50 : x - Step 2: Convert to fraction form
124,529,236.38/171,839,036.79 = 69,514,969.50/x - Step 3: Cross multiply
124,529,236.38x = 171,839,036.79 × 69,514,969.50 - Step 4: Simplify right side
124,529,236.38x = 11,945,385,401,366,228 - Step 5: Solve for x
x = 11,945,385,401,366,228/124,529,236.38 - Step 6: Final answer
x = 95,924,344.75
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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.