Finding the Fourth Proportional to 128,259,902.48, 176,993,923.54 and 69,521,306.47
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Solution
The fourth proportional to 128,259,902.48, 176,993,923.54 and 69,521,306.47 is: 95,936,832.66
Step by Step Solution
- Step 1: Write the proportion equation
128,259,902.48 : 176,993,923.54 = 69,521,306.47 : x - Step 2: Convert to fraction form
128,259,902.48/176,993,923.54 = 69,521,306.47/x - Step 3: Cross multiply
128,259,902.48x = 176,993,923.54 × 69,521,306.47 - Step 4: Simplify right side
128,259,902.48x = 12,304,848,801,752,086 - Step 5: Solve for x
x = 12,304,848,801,752,086/128,259,902.48 - Step 6: Final answer
x = 95,936,832.66
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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.