Finding the Fourth Proportional to 75,450,140.96, 113,128,863.09 and 29,338,260.18
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Solution
The fourth proportional to 75,450,140.96, 113,128,863.09 and 29,338,260.18 is: 43,989,368.04
Step by Step Solution
- Step 1: Write the proportion equation
75,450,140.96 : 113,128,863.09 = 29,338,260.18 : x - Step 2: Convert to fraction form
75,450,140.96/113,128,863.09 = 29,338,260.18/x - Step 3: Cross multiply
75,450,140.96x = 113,128,863.09 × 29,338,260.18 - Step 4: Simplify right side
75,450,140.96x = 3,319,004,019,202,019 - Step 5: Solve for x
x = 3,319,004,019,202,019/75,450,140.96 - Step 6: Final answer
x = 43,989,368.04
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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.