Finding the Fourth Proportional to 140,110,569.65, 193,364,537.69 and 78,242,860.37
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Solution
The fourth proportional to 140,110,569.65, 193,364,537.69 and 78,242,860.37 is: 107,981,821.50
Step by Step Solution
- Step 1: Write the proportion equation
140,110,569.65 : 193,364,537.69 = 78,242,860.37 : x - Step 2: Convert to fraction form
140,110,569.65/193,364,537.69 = 78,242,860.37/x - Step 3: Cross multiply
140,110,569.65x = 193,364,537.69 × 78,242,860.37 - Step 4: Simplify right side
140,110,569.65x = 15,129,394,522,217,056 - Step 5: Solve for x
x = 15,129,394,522,217,056/140,110,569.65 - Step 6: Final answer
x = 107,981,821.50
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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.