Finding the Fourth Proportional to 19,753,782.84, 29,778,732.90 and 18,436,990.14
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Solution
The fourth proportional to 19,753,782.84, 29,778,732.90 and 18,436,990.14 is: 27,793,674.22
Step by Step Solution
- Step 1: Write the proportion equation
19,753,782.84 : 29,778,732.90 = 18,436,990.14 : x - Step 2: Convert to fraction form
19,753,782.84/29,778,732.90 = 18,436,990.14/x - Step 3: Cross multiply
19,753,782.84x = 29,778,732.90 × 18,436,990.14 - Step 4: Simplify right side
19,753,782.84x = 549,030,204,858,993.62 - Step 5: Solve for x
x = 549,030,204,858,993.62/19,753,782.84 - Step 6: Final answer
x = 27,793,674.22
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Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.