Finding the Fourth Proportional to 11,509,740.80, 15,883,443.16 and 6,353,103.68
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Solution
The fourth proportional to 11,509,740.80, 15,883,443.16 and 6,353,103.68 is: 8,767,283.55
Step by Step Solution
- Step 1: Write the proportion equation
11,509,740.80 : 15,883,443.16 = 6,353,103.68 : x - Step 2: Convert to fraction form
11,509,740.80/15,883,443.16 = 6,353,103.68/x - Step 3: Cross multiply
11,509,740.80x = 15,883,443.16 × 6,353,103.68 - Step 4: Simplify right side
11,509,740.80x = 100,909,161,190,866.83 - Step 5: Solve for x
x = 100,909,161,190,866.83/11,509,740.80 - Step 6: Final answer
x = 8,767,283.55
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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.