Finding the Fourth Proportional to 1,479,471,556.80, 2,218,929,886.91 and 742,343,542.14
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Solution
The fourth proportional to 1,479,471,556.80, 2,218,929,886.91 and 742,343,542.14 is: 1,113,376,100.03
Step by Step Solution
- Step 1: Write the proportion equation
1,479,471,556.80 : 2,218,929,886.91 = 742,343,542.14 : x - Step 2: Convert to fraction form
1,479,471,556.80/2,218,929,886.91 = 742,343,542.14/x - Step 3: Cross multiply
1,479,471,556.80x = 2,218,929,886.91 × 742,343,542.14 - Step 4: Simplify right side
1,479,471,556.80x = 1,647,208,272,009,078,784 - Step 5: Solve for x
x = 1,647,208,272,009,078,784/1,479,471,556.80 - Step 6: Final answer
x = 1,113,376,100.03
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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.