Finding the Fourth Proportional to 39,957,817.68, 55,141,788.51 and 21,623,103.18
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Solution
The fourth proportional to 39,957,817.68, 55,141,788.51 and 21,623,103.18 is: 29,839,882.45
Step by Step Solution
- Step 1: Write the proportion equation
39,957,817.68 : 55,141,788.51 = 21,623,103.18 : x - Step 2: Convert to fraction form
39,957,817.68/55,141,788.51 = 21,623,103.18/x - Step 3: Cross multiply
39,957,817.68x = 55,141,788.51 × 21,623,103.18 - Step 4: Simplify right side
39,957,817.68x = 1,192,336,582,481,468.50 - Step 5: Solve for x
x = 1,192,336,582,481,468.50/39,957,817.68 - Step 6: Final answer
x = 29,839,882.45
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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.