Finding the Fourth Proportional to 490,651,800.36, 677,101,589.58 and 267,638,342.05
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Solution
The fourth proportional to 490,651,800.36, 677,101,589.58 and 267,638,342.05 is: 369,342,060.30
Step by Step Solution
- Step 1: Write the proportion equation
490,651,800.36 : 677,101,589.58 = 267,638,342.05 : x - Step 2: Convert to fraction form
490,651,800.36/677,101,589.58 = 267,638,342.05/x - Step 3: Cross multiply
490,651,800.36x = 677,101,589.58 × 267,638,342.05 - Step 4: Simplify right side
490,651,800.36x = 181,218,346,834,610,784 - Step 5: Solve for x
x = 181,218,346,834,610,784/490,651,800.36 - Step 6: Final answer
x = 369,342,060.30
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.