Finding the Fourth Proportional to 11,509,738.80, 15,883,440.40 and 6,353,101.68
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Solution
The fourth proportional to 11,509,738.80, 15,883,440.40 and 6,353,101.68 is: 8,767,280.79
Step by Step Solution
- Step 1: Write the proportion equation
11,509,738.80 : 15,883,440.40 = 6,353,101.68 : x - Step 2: Convert to fraction form
11,509,738.80/15,883,440.40 = 6,353,101.68/x - Step 3: Cross multiply
11,509,738.80x = 15,883,440.40 × 6,353,101.68 - Step 4: Simplify right side
11,509,738.80x = 100,909,111,889,419.88 - Step 5: Solve for x
x = 100,909,111,889,419.88/11,509,738.80 - Step 6: Final answer
x = 8,767,280.79
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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.