Finding the Fourth Proportional to 1,306,100,859.24, 1,802,419,121.70 and 719,390,024.04
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Solution
The fourth proportional to 1,306,100,859.24, 1,802,419,121.70 and 719,390,024.04 is: 992,758,197.90
Step by Step Solution
- Step 1: Write the proportion equation
1,306,100,859.24 : 1,802,419,121.70 = 719,390,024.04 : x - Step 2: Convert to fraction form
1,306,100,859.24/1,802,419,121.70 = 719,390,024.04/x - Step 3: Cross multiply
1,306,100,859.24x = 1,802,419,121.70 × 719,390,024.04 - Step 4: Simplify right side
1,306,100,859.24x = 1,296,642,335,289,918,720 - Step 5: Solve for x
x = 1,296,642,335,289,918,720/1,306,100,859.24 - Step 6: Final answer
x = 992,758,197.90
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.