Finding the Fourth Proportional to 39,957,924.70, 55,141,933.98 and 21,623,210.20
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Solution
The fourth proportional to 39,957,924.70, 55,141,933.98 and 21,623,210.20 is: 29,840,028.94
Step by Step Solution
- Step 1: Write the proportion equation
39,957,924.70 : 55,141,933.98 = 21,623,210.20 : x - Step 2: Convert to fraction form
39,957,924.70/55,141,933.98 = 21,623,210.20/x - Step 3: Cross multiply
39,957,924.70x = 55,141,933.98 × 21,623,210.20 - Step 4: Simplify right side
39,957,924.70x = 1,192,345,629,284,062.50 - Step 5: Solve for x
x = 1,192,345,629,284,062.50/39,957,924.70 - Step 6: Final answer
x = 29,840,028.94
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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.