Finding the Fourth Proportional to 729,199,316.08, 1,093,800,655.58 and 420,325,640.80
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Solution
The fourth proportional to 729,199,316.08, 1,093,800,655.58 and 420,325,640.80 is: 630,489,430.44
Step by Step Solution
- Step 1: Write the proportion equation
729,199,316.08 : 1,093,800,655.58 = 420,325,640.80 : x - Step 2: Convert to fraction form
729,199,316.08/1,093,800,655.58 = 420,325,640.80/x - Step 3: Cross multiply
729,199,316.08x = 1,093,800,655.58 × 420,325,640.80 - Step 4: Simplify right side
729,199,316.08x = 459,752,461,471,148,992 - Step 5: Solve for x
x = 459,752,461,471,148,992/729,199,316.08 - Step 6: Final answer
x = 630,489,430.44
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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.