Finding the Fourth Proportional to 5,448,320,982.21, 8,172,481,581.45 and 1,307,764,506.63
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Solution
The fourth proportional to 5,448,320,982.21, 8,172,481,581.45 and 1,307,764,506.63 is: 1,961,646,785.90
Step by Step Solution
- Step 1: Write the proportion equation
5,448,320,982.21 : 8,172,481,581.45 = 1,307,764,506.63 : x - Step 2: Convert to fraction form
5,448,320,982.21/8,172,481,581.45 = 1,307,764,506.63/x - Step 3: Cross multiply
5,448,320,982.21x = 8,172,481,581.45 × 1,307,764,506.63 - Step 4: Simplify right side
5,448,320,982.21x = 10,687,681,343,307,722,752 - Step 5: Solve for x
x = 10,687,681,343,307,722,752/5,448,320,982.21 - Step 6: Final answer
x = 1,961,646,785.90
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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.