Finding the Fourth Proportional to 235,829,948.13, 325,440,969.21 and 128,540,195.01
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Solution
The fourth proportional to 235,829,948.13, 325,440,969.21 and 128,540,195.01 is: 177,383,093.11
Step by Step Solution
- Step 1: Write the proportion equation
235,829,948.13 : 325,440,969.21 = 128,540,195.01 : x - Step 2: Convert to fraction form
235,829,948.13/325,440,969.21 = 128,540,195.01/x - Step 3: Cross multiply
235,829,948.13x = 325,440,969.21 × 128,540,195.01 - Step 4: Simplify right side
235,829,948.13x = 41,832,245,646,496,808 - Step 5: Solve for x
x = 41,832,245,646,496,808/235,829,948.13 - Step 6: Final answer
x = 177,383,093.11
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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.