Finding the Fourth Proportional to 99,694,878.40, 149,542,317.60 and 54,345,246.40
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Solution
The fourth proportional to 99,694,878.40, 149,542,317.60 and 54,345,246.40 is: 81,517,869.60
Step by Step Solution
- Step 1: Write the proportion equation
99,694,878.40 : 149,542,317.60 = 54,345,246.40 : x - Step 2: Convert to fraction form
99,694,878.40/149,542,317.60 = 54,345,246.40/x - Step 3: Cross multiply
99,694,878.40x = 149,542,317.60 × 54,345,246.40 - Step 4: Simplify right side
99,694,878.40x = 8,126,914,097,199,056 - Step 5: Solve for x
x = 8,126,914,097,199,056/99,694,878.40 - Step 6: Final answer
x = 81,517,869.60
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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.