Finding the Fourth Proportional to 99,697,687.60, 149,285,452.20 and 80,163,079.60
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Solution
The fourth proportional to 99,697,687.60, 149,285,452.20 and 80,163,079.60 is: 120,034,695.65
Step by Step Solution
- Step 1: Write the proportion equation
99,697,687.60 : 149,285,452.20 = 80,163,079.60 : x - Step 2: Convert to fraction form
99,697,687.60/149,285,452.20 = 80,163,079.60/x - Step 3: Cross multiply
99,697,687.60x = 149,285,452.20 × 80,163,079.60 - Step 4: Simplify right side
99,697,687.60x = 11,967,181,587,830,594 - Step 5: Solve for x
x = 11,967,181,587,830,594/99,697,687.60 - Step 6: Final answer
x = 120,034,695.65
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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.