Finding the Fourth Proportional to 887,124,976.70, 1,330,687,465.05 and 657,542,464.70
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Solution
The fourth proportional to 887,124,976.70, 1,330,687,465.05 and 657,542,464.70 is: 986,313,697.05
Step by Step Solution
- Step 1: Write the proportion equation
887,124,976.70 : 1,330,687,465.05 = 657,542,464.70 : x - Step 2: Convert to fraction form
887,124,976.70/1,330,687,465.05 = 657,542,464.70/x - Step 3: Cross multiply
887,124,976.70x = 1,330,687,465.05 × 657,542,464.70 - Step 4: Simplify right side
887,124,976.70x = 874,983,515,514,372,096 - Step 5: Solve for x
x = 874,983,515,514,372,096/887,124,976.70 - Step 6: Final answer
x = 986,313,697.05
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Double scale
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Similar ratio
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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.