Finding the Fourth Proportional to 426,163,670.70, 639,245,506.05 and 196,581,158.70
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Solution
The fourth proportional to 426,163,670.70, 639,245,506.05 and 196,581,158.70 is: 294,871,738.05
Step by Step Solution
- Step 1: Write the proportion equation
426,163,670.70 : 639,245,506.05 = 196,581,158.70 : x - Step 2: Convert to fraction form
426,163,670.70/639,245,506.05 = 196,581,158.70/x - Step 3: Cross multiply
426,163,670.70x = 639,245,506.05 × 196,581,158.70 - Step 4: Simplify right side
426,163,670.70x = 125,663,622,273,076,848 - Step 5: Solve for x
x = 125,663,622,273,076,848/426,163,670.70 - Step 6: Final answer
x = 294,871,738.05
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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.