Finding the Fourth Proportional to 20,757,976.18, 28,646,006.03 and 11,210,257.49
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Solution
The fourth proportional to 20,757,976.18, 28,646,006.03 and 11,210,257.49 is: 15,470,154.74
Step by Step Solution
- Step 1: Write the proportion equation
20,757,976.18 : 28,646,006.03 = 11,210,257.49 : x - Step 2: Convert to fraction form
20,757,976.18/28,646,006.03 = 11,210,257.49/x - Step 3: Cross multiply
20,757,976.18x = 28,646,006.03 × 11,210,257.49 - Step 4: Simplify right side
20,757,976.18x = 321,129,103,541,188.25 - Step 5: Solve for x
x = 321,129,103,541,188.25/20,757,976.18 - Step 6: Final answer
x = 15,470,154.74
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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.