Finding the Fourth Proportional to 18,363,043.20, 27,544,564.80 and 9,859,987.20
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Solution
The fourth proportional to 18,363,043.20, 27,544,564.80 and 9,859,987.20 is: 14,789,980.80
Step by Step Solution
- Step 1: Write the proportion equation
18,363,043.20 : 27,544,564.80 = 9,859,987.20 : x - Step 2: Convert to fraction form
18,363,043.20/27,544,564.80 = 9,859,987.20/x - Step 3: Cross multiply
18,363,043.20x = 27,544,564.80 × 9,859,987.20 - Step 4: Simplify right side
18,363,043.20x = 271,589,056,357,570.53 - Step 5: Solve for x
x = 271,589,056,357,570.53/18,363,043.20 - Step 6: Final answer
x = 14,789,980.80
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.