Finding the Fourth Proportional to 247,412,343.25, 341,409,122.36 and 142,997,177.53
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Solution
The fourth proportional to 247,412,343.25, 341,409,122.36 and 142,997,177.53 is: 197,324,596.82
Step by Step Solution
- Step 1: Write the proportion equation
247,412,343.25 : 341,409,122.36 = 142,997,177.53 : x - Step 2: Convert to fraction form
247,412,343.25/341,409,122.36 = 142,997,177.53/x - Step 3: Cross multiply
247,412,343.25x = 341,409,122.36 × 142,997,177.53 - Step 4: Simplify right side
247,412,343.25x = 48,820,540,879,759,432 - Step 5: Solve for x
x = 48,820,540,879,759,432/247,412,343.25 - Step 6: Final answer
x = 197,324,596.82
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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.