Finding the Fourth Proportional to 77,855,794.26, 107,436,660.57 and 43,046,394.18
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Solution
The fourth proportional to 77,855,794.26, 107,436,660.57 and 43,046,394.18 is: 59,401,626.87
Step by Step Solution
- Step 1: Write the proportion equation
77,855,794.26 : 107,436,660.57 = 43,046,394.18 : x - Step 2: Convert to fraction form
77,855,794.26/107,436,660.57 = 43,046,394.18/x - Step 3: Cross multiply
77,855,794.26x = 107,436,660.57 × 43,046,394.18 - Step 4: Simplify right side
77,855,794.26x = 4,624,760,840,279,083 - Step 5: Solve for x
x = 4,624,760,840,279,083/77,855,794.26 - Step 6: Final answer
x = 59,401,626.87
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.