Finding the Fourth Proportional to 18,461,905.74, 27,694,039.61 and 7,102,354.38
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Solution
The fourth proportional to 18,461,905.74, 27,694,039.61 and 7,102,354.38 is: 10,653,985.90
Step by Step Solution
- Step 1: Write the proportion equation
18,461,905.74 : 27,694,039.61 = 7,102,354.38 : x - Step 2: Convert to fraction form
18,461,905.74/27,694,039.61 = 7,102,354.38/x - Step 3: Cross multiply
18,461,905.74x = 27,694,039.61 × 7,102,354.38 - Step 4: Simplify right side
18,461,905.74x = 196,692,883,488,465.22 - Step 5: Solve for x
x = 196,692,883,488,465.22/18,461,905.74 - Step 6: Final answer
x = 10,653,985.90
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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.