Finding the Fourth Proportional to 630,179,157.36, 945,601,774.20 and 447,129,619.44
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Solution
The fourth proportional to 630,179,157.36, 945,601,774.20 and 447,129,619.44 is: 670,930,728.99
Step by Step Solution
- Step 1: Write the proportion equation
630,179,157.36 : 945,601,774.20 = 447,129,619.44 : x - Step 2: Convert to fraction form
630,179,157.36/945,601,774.20 = 447,129,619.44/x - Step 3: Cross multiply
630,179,157.36x = 945,601,774.20 × 447,129,619.44 - Step 4: Simplify right side
630,179,157.36x = 422,806,561,439,834,816 - Step 5: Solve for x
x = 422,806,561,439,834,816/630,179,157.36 - Step 6: Final answer
x = 670,930,728.99
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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.