Finding the Fourth Proportional to 107,982,487.40, 161,987,939.10 and 39,873,021.80
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Solution
The fourth proportional to 107,982,487.40, 161,987,939.10 and 39,873,021.80 is: 59,814,779.07
Step by Step Solution
- Step 1: Write the proportion equation
107,982,487.40 : 161,987,939.10 = 39,873,021.80 : x - Step 2: Convert to fraction form
107,982,487.40/161,987,939.10 = 39,873,021.80/x - Step 3: Cross multiply
107,982,487.40x = 161,987,939.10 × 39,873,021.80 - Step 4: Simplify right side
107,982,487.40x = 6,458,948,627,071,372 - Step 5: Solve for x
x = 6,458,948,627,071,372/107,982,487.40 - Step 6: Final answer
x = 59,814,779.07
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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.