Finding the Fourth Proportional to 76,974,643.58, 115,463,146.34 and 25,857,105.26
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Solution
The fourth proportional to 76,974,643.58, 115,463,146.34 and 25,857,105.26 is: 38,786,054.59
Step by Step Solution
- Step 1: Write the proportion equation
76,974,643.58 : 115,463,146.34 = 25,857,105.26 : x - Step 2: Convert to fraction form
76,974,643.58/115,463,146.34 = 25,857,105.26/x - Step 3: Cross multiply
76,974,643.58x = 115,463,146.34 × 25,857,105.26 - Step 4: Simplify right side
76,974,643.58x = 2,985,542,728,051,490.50 - Step 5: Solve for x
x = 2,985,542,728,051,490.50/76,974,643.58 - Step 6: Final answer
x = 38,786,054.59
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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.