Finding the Fourth Proportional to 720,321,524.24, 994,054,988.76 and 422,970,341.18
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Solution
The fourth proportional to 720,321,524.24, 994,054,988.76 and 422,970,341.18 is: 583,705,697.52
Step by Step Solution
- Step 1: Write the proportion equation
720,321,524.24 : 994,054,988.76 = 422,970,341.18 : x - Step 2: Convert to fraction form
720,321,524.24/994,054,988.76 = 422,970,341.18/x - Step 3: Cross multiply
720,321,524.24x = 994,054,988.76 × 422,970,341.18 - Step 4: Simplify right side
720,321,524.24x = 420,455,777,747,498,240 - Step 5: Solve for x
x = 420,455,777,747,498,240/720,321,524.24 - Step 6: Final answer
x = 583,705,697.52
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1.5x scale
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.