Finding the Fourth Proportional to 1,479,471,556.75, 2,218,929,886.84 and 742,343,542.09
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Solution
The fourth proportional to 1,479,471,556.75, 2,218,929,886.84 and 742,343,542.09 is: 1,113,376,099.95
Step by Step Solution
- Step 1: Write the proportion equation
1,479,471,556.75 : 2,218,929,886.84 = 742,343,542.09 : x - Step 2: Convert to fraction form
1,479,471,556.75/2,218,929,886.84 = 742,343,542.09/x - Step 3: Cross multiply
1,479,471,556.75x = 2,218,929,886.84 × 742,343,542.09 - Step 4: Simplify right side
1,479,471,556.75x = 1,647,208,271,845,750,016 - Step 5: Solve for x
x = 1,647,208,271,845,750,016/1,479,471,556.75 - Step 6: Final answer
x = 1,113,376,099.95
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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.