Finding the Fourth Proportional to 212,299,241.44, 293,063,349.36 and 142,724,974
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Solution
The fourth proportional to 212,299,241.44, 293,063,349.36 and 142,724,974 is: 197,021,235.85
Step by Step Solution
- Step 1: Write the proportion equation
212,299,241.44 : 293,063,349.36 = 142,724,974 : x - Step 2: Convert to fraction form
212,299,241.44/293,063,349.36 = 142,724,974/x - Step 3: Cross multiply
212,299,241.44x = 293,063,349.36 × 142,724,974 - Step 4: Simplify right side
212,299,241.44x = 41,827,458,917,758,920 - Step 5: Solve for x
x = 41,827,458,917,758,920/212,299,241.44 - Step 6: Final answer
x = 197,021,235.85
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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.