Finding the Fourth Proportional to 127,175,027.80, 190,762,541.70 and 31,436,915.80
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Solution
The fourth proportional to 127,175,027.80, 190,762,541.70 and 31,436,915.80 is: 47,155,373.70
Step by Step Solution
- Step 1: Write the proportion equation
127,175,027.80 : 190,762,541.70 = 31,436,915.80 : x - Step 2: Convert to fraction form
127,175,027.80/190,762,541.70 = 31,436,915.80/x - Step 3: Cross multiply
127,175,027.80x = 190,762,541.70 × 31,436,915.80 - Step 4: Simplify right side
127,175,027.80x = 5,996,985,961,216,889 - Step 5: Solve for x
x = 5,996,985,961,216,889/127,175,027.80 - Step 6: Final answer
x = 47,155,373.70
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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.