Finding the Fourth Proportional to 107,982,400.40, 161,987,808.60 and 39,872,934.80
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Solution
The fourth proportional to 107,982,400.40, 161,987,808.60 and 39,872,934.80 is: 59,814,648.56
Step by Step Solution
- Step 1: Write the proportion equation
107,982,400.40 : 161,987,808.60 = 39,872,934.80 : x - Step 2: Convert to fraction form
107,982,400.40/161,987,808.60 = 39,872,934.80/x - Step 3: Cross multiply
107,982,400.40x = 161,987,808.60 × 39,872,934.80 - Step 4: Simplify right side
107,982,400.40x = 6,458,929,330,702,679 - Step 5: Solve for x
x = 6,458,929,330,702,679/107,982,400.40 - Step 6: Final answer
x = 59,814,648.56
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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.