Finding the Fourth Proportional to 129,945,394.36, 194,916,254.88 and 31,577,824.00
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Solution
The fourth proportional to 129,945,394.36, 194,916,254.88 and 31,577,824.00 is: 47,366,289.67
Step by Step Solution
- Step 1: Write the proportion equation
129,945,394.36 : 194,916,254.88 = 31,577,824.00 : x - Step 2: Convert to fraction form
129,945,394.36/194,916,254.88 = 31,577,824.00/x - Step 3: Cross multiply
129,945,394.36x = 194,916,254.88 × 31,577,824.00 - Step 4: Simplify right side
129,945,394.36x = 6,155,031,190,365,200 - Step 5: Solve for x
x = 6,155,031,190,365,200/129,945,394.36 - Step 6: Final answer
x = 47,366,289.67
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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.