Finding the Fourth Proportional to 18,259,079.76, 27,388,930.68 and 6,904,875.60
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Solution
The fourth proportional to 18,259,079.76, 27,388,930.68 and 6,904,875.60 is: 10,357,431.02
Step by Step Solution
- Step 1: Write the proportion equation
18,259,079.76 : 27,388,930.68 = 6,904,875.60 : x - Step 2: Convert to fraction form
18,259,079.76/27,388,930.68 = 6,904,875.60/x - Step 3: Cross multiply
18,259,079.76x = 27,388,930.68 × 6,904,875.60 - Step 4: Simplify right side
18,259,079.76x = 189,117,159,162,423.41 - Step 5: Solve for x
x = 189,117,159,162,423.41/18,259,079.76 - Step 6: Final answer
x = 10,357,431.02
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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.