Finding the Fourth Proportional to 128,131,686,027.36, 192,234,848,488.79 and 57,369,848,249.75
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Solution
The fourth proportional to 128,131,686,027.36, 192,234,848,488.79 and 57,369,848,249.75 is: 86,071,481,832.84
Step by Step Solution
- Step 1: Write the proportion equation
128,131,686,027.36 : 192,234,848,488.79 = 57,369,848,249.75 : x - Step 2: Convert to fraction form
128,131,686,027.36/192,234,848,488.79 = 57,369,848,249.75/x - Step 3: Cross multiply
128,131,686,027.36x = 192,234,848,488.79 × 57,369,848,249.75 - Step 4: Simplify right side
128,131,686,027.36x = 11,028,484,086,114,604,285,952 - Step 5: Solve for x
x = 11,028,484,086,114,604,285,952/128,131,686,027.36 - Step 6: Final answer
x = 86,071,481,832.84
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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.