Finding the Fourth Proportional to 931,622,698.80, 1,396,247,163.30 and 495,132,490.80
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Solution
The fourth proportional to 931,622,698.80, 1,396,247,163.30 and 495,132,490.80 is: 742,067,938.69
Step by Step Solution
- Step 1: Write the proportion equation
931,622,698.80 : 1,396,247,163.30 = 495,132,490.80 : x - Step 2: Convert to fraction form
931,622,698.80/1,396,247,163.30 = 495,132,490.80/x - Step 3: Cross multiply
931,622,698.80x = 1,396,247,163.30 × 495,132,490.80 - Step 4: Simplify right side
931,622,698.80x = 691,327,335,737,163,392 - Step 5: Solve for x
x = 691,327,335,737,163,392/931,622,698.80 - Step 6: Final answer
x = 742,067,938.69
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1.5x scale
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.