Finding the Fourth Proportional to 1,121,473,213.60, 1,682,209,820.40 and 734,489,687.20
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Solution
The fourth proportional to 1,121,473,213.60, 1,682,209,820.40 and 734,489,687.20 is: 1,101,734,530.80
Step by Step Solution
- Step 1: Write the proportion equation
1,121,473,213.60 : 1,682,209,820.40 = 734,489,687.20 : x - Step 2: Convert to fraction form
1,121,473,213.60/1,682,209,820.40 = 734,489,687.20/x - Step 3: Cross multiply
1,121,473,213.60x = 1,682,209,820.40 × 734,489,687.20 - Step 4: Simplify right side
1,121,473,213.60x = 1,235,565,764,790,364,416 - Step 5: Solve for x
x = 1,235,565,764,790,364,416/1,121,473,213.60 - Step 6: Final answer
x = 1,101,734,530.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.