Finding the Fourth Proportional to 279,743,998.90, 419,615,998.35 and 274,369,227.70
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Solution
The fourth proportional to 279,743,998.90, 419,615,998.35 and 274,369,227.70 is: 411,553,841.55
Step by Step Solution
- Step 1: Write the proportion equation
279,743,998.90 : 419,615,998.35 = 274,369,227.70 : x - Step 2: Convert to fraction form
279,743,998.90/419,615,998.35 = 274,369,227.70/x - Step 3: Cross multiply
279,743,998.90x = 419,615,998.35 × 274,369,227.70 - Step 4: Simplify right side
279,743,998.90x = 115,129,717,397,853,968 - Step 5: Solve for x
x = 115,129,717,397,853,968/279,743,998.90 - Step 6: Final answer
x = 411,553,841.55
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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.