Finding the Fourth Proportional to 979,575,650.68, 1,351,814,349.90 and 539,542,524.28
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Solution
The fourth proportional to 979,575,650.68, 1,351,814,349.90 and 539,542,524.28 is: 744,568,657.05
Step by Step Solution
- Step 1: Write the proportion equation
979,575,650.68 : 1,351,814,349.90 = 539,542,524.28 : x - Step 2: Convert to fraction form
979,575,650.68/1,351,814,349.90 = 539,542,524.28/x - Step 3: Cross multiply
979,575,650.68x = 1,351,814,349.90 × 539,542,524.28 - Step 4: Simplify right side
979,575,650.68x = 729,361,326,702,973,184 - Step 5: Solve for x
x = 729,361,326,702,973,184/979,575,650.68 - Step 6: Final answer
x = 744,568,657.05
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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.