Finding the Fourth Proportional to 18,461,905.49, 27,694,039.23 and 7,102,354.13
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Solution
The fourth proportional to 18,461,905.49, 27,694,039.23 and 7,102,354.13 is: 10,653,985.53
Step by Step Solution
- Step 1: Write the proportion equation
18,461,905.49 : 27,694,039.23 = 7,102,354.13 : x - Step 2: Convert to fraction form
18,461,905.49/27,694,039.23 = 7,102,354.13/x - Step 3: Cross multiply
18,461,905.49x = 27,694,039.23 × 7,102,354.13 - Step 4: Simplify right side
18,461,905.49x = 196,692,873,901,572.53 - Step 5: Solve for x
x = 196,692,873,901,572.53/18,461,905.49 - Step 6: Final answer
x = 10,653,985.53
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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.