Finding the Fourth Proportional to 11,999,929.50, 18,001,764.09 and 3,911,028.48
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Solution
The fourth proportional to 11,999,929.50, 18,001,764.09 and 3,911,028.48 is: 5,867,152.14
Step by Step Solution
- Step 1: Write the proportion equation
11,999,929.50 : 18,001,764.09 = 3,911,028.48 : x - Step 2: Convert to fraction form
11,999,929.50/18,001,764.09 = 3,911,028.48/x - Step 3: Cross multiply
11,999,929.50x = 18,001,764.09 × 3,911,028.48 - Step 4: Simplify right side
11,999,929.50x = 70,405,412,046,231.28 - Step 5: Solve for x
x = 70,405,412,046,231.28/11,999,929.50 - Step 6: Final answer
x = 5,867,152.14
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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.