Finding the Fourth Proportional to 103,972,059.26, 143,480,915.46 and 56,928,277.94
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Solution
The fourth proportional to 103,972,059.26, 143,480,915.46 and 56,928,277.94 is: 78,560,735.38
Step by Step Solution
- Step 1: Write the proportion equation
103,972,059.26 : 143,480,915.46 = 56,928,277.94 : x - Step 2: Convert to fraction form
103,972,059.26/143,480,915.46 = 56,928,277.94/x - Step 3: Cross multiply
103,972,059.26x = 143,480,915.46 × 56,928,277.94 - Step 4: Simplify right side
103,972,059.26x = 8,168,121,434,392,523 - Step 5: Solve for x
x = 8,168,121,434,392,523/103,972,059.26 - Step 6: Final answer
x = 78,560,735.38
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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.