Finding the Fourth Proportional to 1,076,184,440.40, 1,614,276,660.60 and 815,990,926.80
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Solution
The fourth proportional to 1,076,184,440.40, 1,614,276,660.60 and 815,990,926.80 is: 1,223,986,390.20
Step by Step Solution
- Step 1: Write the proportion equation
1,076,184,440.40 : 1,614,276,660.60 = 815,990,926.80 : x - Step 2: Convert to fraction form
1,076,184,440.40/1,614,276,660.60 = 815,990,926.80/x - Step 3: Cross multiply
1,076,184,440.40x = 1,614,276,660.60 × 815,990,926.80 - Step 4: Simplify right side
1,076,184,440.40x = 1,317,235,108,394,603,008 - Step 5: Solve for x
x = 1,317,235,108,394,603,008/1,076,184,440.40 - Step 6: Final answer
x = 1,223,986,390.20
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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.