Finding the Fourth Proportional to 128,304,228.90, 192,456,343.35 and 60,153,809.70
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Solution
The fourth proportional to 128,304,228.90, 192,456,343.35 and 60,153,809.70 is: 90,230,714.55
Step by Step Solution
- Step 1: Write the proportion equation
128,304,228.90 : 192,456,343.35 = 60,153,809.70 : x - Step 2: Convert to fraction form
128,304,228.90/192,456,343.35 = 60,153,809.70/x - Step 3: Cross multiply
128,304,228.90x = 192,456,343.35 × 60,153,809.70 - Step 4: Simplify right side
128,304,228.90x = 11,576,982,253,433,760 - Step 5: Solve for x
x = 11,576,982,253,433,760/128,304,228.90 - Step 6: Final answer
x = 90,230,714.55
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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.