Finding the Fourth Proportional to 254,483,321.40, 381,473,039.70 and 124,984,927.80
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Solution
The fourth proportional to 254,483,321.40, 381,473,039.70 and 124,984,927.80 is: 187,353,654.70
Step by Step Solution
- Step 1: Write the proportion equation
254,483,321.40 : 381,473,039.70 = 124,984,927.80 : x - Step 2: Convert to fraction form
254,483,321.40/381,473,039.70 = 124,984,927.80/x - Step 3: Cross multiply
254,483,321.40x = 381,473,039.70 × 124,984,927.80 - Step 4: Simplify right side
254,483,321.40x = 47,678,380,324,551,032 - Step 5: Solve for x
x = 47,678,380,324,551,032/254,483,321.40 - Step 6: Final answer
x = 187,353,654.70
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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.