Finding the Fourth Proportional to 128,961,922.10, 193,263,915.36 and 58,760,588.06
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Solution
The fourth proportional to 128,961,922.10, 193,263,915.36 and 58,760,588.06 is: 88,059,336.69
Step by Step Solution
- Step 1: Write the proportion equation
128,961,922.10 : 193,263,915.36 = 58,760,588.06 : x - Step 2: Convert to fraction form
128,961,922.10/193,263,915.36 = 58,760,588.06/x - Step 3: Cross multiply
128,961,922.10x = 193,263,915.36 × 58,760,588.06 - Step 4: Simplify right side
128,961,922.10x = 11,356,301,317,310,440 - Step 5: Solve for x
x = 11,356,301,317,310,440/128,961,922.10 - Step 6: Final answer
x = 88,059,336.69
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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.