Finding the Fourth Proportional to 7,964,576,178.12, 10,991,116,201.59 and 4,396,283,757.54
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Solution
The fourth proportional to 7,964,576,178.12, 10,991,116,201.59 and 4,396,283,757.54 is: 6,066,872,179.22
Step by Step Solution
- Step 1: Write the proportion equation
7,964,576,178.12 : 10,991,116,201.59 = 4,396,283,757.54 : x - Step 2: Convert to fraction form
7,964,576,178.12/10,991,116,201.59 = 4,396,283,757.54/x - Step 3: Cross multiply
7,964,576,178.12x = 10,991,116,201.59 × 4,396,283,757.54 - Step 4: Simplify right side
7,964,576,178.12x = 48,320,065,634,284,855,296 - Step 5: Solve for x
x = 48,320,065,634,284,855,296/7,964,576,178.12 - Step 6: Final answer
x = 6,066,872,179.22
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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.