Finding the Fourth Proportional to 11,287,460.80, 15,576,901.10 and 6,393,698.99
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Solution
The fourth proportional to 11,287,460.80, 15,576,901.10 and 6,393,698.99 is: 8,823,420.84
Step by Step Solution
- Step 1: Write the proportion equation
11,287,460.80 : 15,576,901.10 = 6,393,698.99 : x - Step 2: Convert to fraction form
11,287,460.80/15,576,901.10 = 6,393,698.99/x - Step 3: Cross multiply
11,287,460.80x = 15,576,901.10 × 6,393,698.99 - Step 4: Simplify right side
11,287,460.80x = 99,594,016,830,399.89 - Step 5: Solve for x
x = 99,594,016,830,399.89/11,287,460.80 - Step 6: Final answer
x = 8,823,420.84
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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.