Finding the Fourth Proportional to 128,662,801.56, 177,556,037.49 and 69,925,469.76
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Solution
The fourth proportional to 128,662,801.56, 177,556,037.49 and 69,925,469.76 is: 96,497,893.56
Step by Step Solution
- Step 1: Write the proportion equation
128,662,801.56 : 177,556,037.49 = 69,925,469.76 : x - Step 2: Convert to fraction form
128,662,801.56/177,556,037.49 = 69,925,469.76/x - Step 3: Cross multiply
128,662,801.56x = 177,556,037.49 × 69,925,469.76 - Step 4: Simplify right side
128,662,801.56x = 12,415,689,330,212,422 - Step 5: Solve for x
x = 12,415,689,330,212,422/128,662,801.56 - Step 6: Final answer
x = 96,497,893.56
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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.