Finding the Fourth Proportional to 7,972,276,045.20, 11,958,414,067.80 and 4,872,912,133.20
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Solution
The fourth proportional to 7,972,276,045.20, 11,958,414,067.80 and 4,872,912,133.20 is: 7,309,368,199.80
Step by Step Solution
- Step 1: Write the proportion equation
7,972,276,045.20 : 11,958,414,067.80 = 4,872,912,133.20 : x - Step 2: Convert to fraction form
7,972,276,045.20/11,958,414,067.80 = 4,872,912,133.20/x - Step 3: Cross multiply
7,972,276,045.20x = 11,958,414,067.80 × 4,872,912,133.20 - Step 4: Simplify right side
7,972,276,045.20x = 58,272,301,004,812,181,504 - Step 5: Solve for x
x = 58,272,301,004,812,181,504/7,972,276,045.20 - Step 6: Final answer
x = 7,309,368,199.80
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1.5x scale
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.