Finding the Fourth Proportional to 127,174,955.80, 190,762,433.70 and 31,436,843.80
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Solution
The fourth proportional to 127,174,955.80, 190,762,433.70 and 31,436,843.80 is: 47,155,265.70
Step by Step Solution
- Step 1: Write the proportion equation
127,174,955.80 : 190,762,433.70 = 31,436,843.80 : x - Step 2: Convert to fraction form
127,174,955.80/190,762,433.70 = 31,436,843.80/x - Step 3: Cross multiply
127,174,955.80x = 190,762,433.70 × 31,436,843.80 - Step 4: Simplify right side
127,174,955.80x = 5,996,968,831,134,756 - Step 5: Solve for x
x = 5,996,968,831,134,756/127,174,955.80 - Step 6: Final answer
x = 47,155,265.70
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1.5x scale
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.