Finding the Fourth Proportional to 2,420,389,079.20, 3,630,583,618.80 and 2,076,015,311.20
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Solution
The fourth proportional to 2,420,389,079.20, 3,630,583,618.80 and 2,076,015,311.20 is: 3,114,022,966.80
Step by Step Solution
- Step 1: Write the proportion equation
2,420,389,079.20 : 3,630,583,618.80 = 2,076,015,311.20 : x - Step 2: Convert to fraction form
2,420,389,079.20/3,630,583,618.80 = 2,076,015,311.20/x - Step 3: Cross multiply
2,420,389,079.20x = 3,630,583,618.80 × 2,076,015,311.20 - Step 4: Simplify right side
2,420,389,079.20x = 7,537,147,181,220,704,256 - Step 5: Solve for x
x = 7,537,147,181,220,704,256/2,420,389,079.20 - Step 6: Final answer
x = 3,114,022,966.80
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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.