Finding the Fourth Proportional to 124,356,163.20, 186,534,244.80 and 39,255,619.20
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Solution
The fourth proportional to 124,356,163.20, 186,534,244.80 and 39,255,619.20 is: 58,883,428.80
Step by Step Solution
- Step 1: Write the proportion equation
124,356,163.20 : 186,534,244.80 = 39,255,619.20 : x - Step 2: Convert to fraction form
124,356,163.20/186,534,244.80 = 39,255,619.20/x - Step 3: Cross multiply
124,356,163.20x = 186,534,244.80 × 39,255,619.20 - Step 4: Simplify right side
124,356,163.20x = 7,322,517,281,628,381 - Step 5: Solve for x
x = 7,322,517,281,628,381/124,356,163.20 - Step 6: Final answer
x = 58,883,428.80
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Similar ratio
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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.