Finding the Fourth Proportional to 1,282,649,359.22, 1,770,129,053.75 and 718,129,302.02
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Solution
The fourth proportional to 1,282,649,359.22, 1,770,129,053.75 and 718,129,302.02 is: 991,059,273.30
Step by Step Solution
- Step 1: Write the proportion equation
1,282,649,359.22 : 1,770,129,053.75 = 718,129,302.02 : x - Step 2: Convert to fraction form
1,282,649,359.22/1,770,129,053.75 = 718,129,302.02/x - Step 3: Cross multiply
1,282,649,359.22x = 1,770,129,053.75 × 718,129,302.02 - Step 4: Simplify right side
1,282,649,359.22x = 1,271,181,541,850,048,256 - Step 5: Solve for x
x = 1,271,181,541,850,048,256/1,282,649,359.22 - Step 6: Final answer
x = 991,059,273.30
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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.