Finding the Fourth Proportional to 839,815,226.80, 1,259,722,840.20 and 809,204,225.20
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Solution
The fourth proportional to 839,815,226.80, 1,259,722,840.20 and 809,204,225.20 is: 1,213,806,337.80
Step by Step Solution
- Step 1: Write the proportion equation
839,815,226.80 : 1,259,722,840.20 = 809,204,225.20 : x - Step 2: Convert to fraction form
839,815,226.80/1,259,722,840.20 = 809,204,225.20/x - Step 3: Cross multiply
839,815,226.80x = 1,259,722,840.20 × 809,204,225.20 - Step 4: Simplify right side
839,815,226.80x = 1,019,373,044,870,784,512 - Step 5: Solve for x
x = 1,019,373,044,870,784,512/839,815,226.80 - Step 6: Final answer
x = 1,213,806,337.80
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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.