Finding the Fourth Proportional to 720,751,343.60, 1,081,017,779.09 and 196,161,324.68
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Solution
The fourth proportional to 720,751,343.60, 1,081,017,779.09 and 196,161,324.68 is: 294,212,257.02
Step by Step Solution
- Step 1: Write the proportion equation
720,751,343.60 : 1,081,017,779.09 = 196,161,324.68 : x - Step 2: Convert to fraction form
720,751,343.60/1,081,017,779.09 = 196,161,324.68/x - Step 3: Cross multiply
720,751,343.60x = 1,081,017,779.09 × 196,161,324.68 - Step 4: Simplify right side
720,751,343.60x = 212,053,879,548,925,984 - Step 5: Solve for x
x = 212,053,879,548,925,984/720,751,343.60 - Step 6: Final answer
x = 294,212,257.02
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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.