Finding the Fourth Proportional to 66,321,446.99, 99,483,201.58 and 19,639,654.96
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Solution
The fourth proportional to 66,321,446.99, 99,483,201.58 and 19,639,654.96 is: 29,459,787.78
Step by Step Solution
- Step 1: Write the proportion equation
66,321,446.99 : 99,483,201.58 = 19,639,654.96 : x - Step 2: Convert to fraction form
66,321,446.99/99,483,201.58 = 19,639,654.96/x - Step 3: Cross multiply
66,321,446.99x = 99,483,201.58 × 19,639,654.96 - Step 4: Simplify right side
66,321,446.99x = 1,953,815,753,347,327 - Step 5: Solve for x
x = 1,953,815,753,347,327/66,321,446.99 - Step 6: Final answer
x = 29,459,787.78
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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.