Finding the Fourth Proportional to 279,335,135.70, 419,002,703.55 and 279,335,135.70
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Solution
The fourth proportional to 279,335,135.70, 419,002,703.55 and 279,335,135.70 is: 419,002,703.55
Step by Step Solution
- Step 1: Write the proportion equation
279,335,135.70 : 419,002,703.55 = 279,335,135.70 : x - Step 2: Convert to fraction form
279,335,135.70/419,002,703.55 = 279,335,135.70/x - Step 3: Cross multiply
279,335,135.70x = 419,002,703.55 × 279,335,135.70 - Step 4: Simplify right side
279,335,135.70x = 117,042,177,054,806,128 - Step 5: Solve for x
x = 117,042,177,054,806,128/279,335,135.70 - Step 6: Final answer
x = 419,002,703.55
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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.