Finding the Fourth Proportional to 19,122,972.27, 26,388,933.87 and 10,420,959.41
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Solution
The fourth proportional to 19,122,972.27, 26,388,933.87 and 10,420,959.41 is: 14,380,505.55
Step by Step Solution
- Step 1: Write the proportion equation
19,122,972.27 : 26,388,933.87 = 10,420,959.41 : x - Step 2: Convert to fraction form
19,122,972.27/26,388,933.87 = 10,420,959.41/x - Step 3: Cross multiply
19,122,972.27x = 26,388,933.87 × 10,420,959.41 - Step 4: Simplify right side
19,122,972.27x = 274,998,008,732,444.22 - Step 5: Solve for x
x = 274,998,008,732,444.22/19,122,972.27 - Step 6: Final answer
x = 14,380,505.55
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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.