Finding the Fourth Proportional to 20,332,782.84, 28,058,474.07 and 11,040,152.07
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Solution
The fourth proportional to 20,332,782.84, 28,058,474.07 and 11,040,152.07 is: 15,234,993.80
Step by Step Solution
- Step 1: Write the proportion equation
20,332,782.84 : 28,058,474.07 = 11,040,152.07 : x - Step 2: Convert to fraction form
20,332,782.84/28,058,474.07 = 11,040,152.07/x - Step 3: Cross multiply
20,332,782.84x = 28,058,474.07 × 11,040,152.07 - Step 4: Simplify right side
20,332,782.84x = 309,769,820,584,951.81 - Step 5: Solve for x
x = 309,769,820,584,951.81/20,332,782.84 - Step 6: Final answer
x = 15,234,993.80
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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.