Finding the Fourth Proportional to 127,134,065.20, 190,701,097.80 and 31,395,953.20
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Solution
The fourth proportional to 127,134,065.20, 190,701,097.80 and 31,395,953.20 is: 47,093,929.80
Step by Step Solution
- Step 1: Write the proportion equation
127,134,065.20 : 190,701,097.80 = 31,395,953.20 : x - Step 2: Convert to fraction form
127,134,065.20/190,701,097.80 = 31,395,953.20/x - Step 3: Cross multiply
127,134,065.20x = 190,701,097.80 × 31,395,953.20 - Step 4: Simplify right side
127,134,065.20x = 5,987,242,741,717,423 - Step 5: Solve for x
x = 5,987,242,741,717,423/127,134,065.20 - Step 6: Final answer
x = 47,093,929.80
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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.