Finding the Third Proportional to 438,134,388 and 626,491,479
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Solution
The third proportional to 438,134,388 and 626,491,479 is: 895,824,623.70
Step by Step Solution
- Step 1: Write the proportion equation
438,134,388 : 626,491,479 = 626,491,479 : x - Step 2: Convert to fraction form
438,134,388/626,491,479 = 626,491,479/x - Step 3: Cross multiply
438,134,388x = 626,491,479 × 626,491,479 - Step 4: Simplify right side
438,134,388x = 392,491,573,259,607,424 - Step 5: Solve for x
x = 392,491,573,259,607,424/438,134,388 - Step 6: Final answer
x = 895,824,623.70
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Why These Related Problems?
These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.