Finding the Fourth Proportional to 66,426,804.70, 99,640,207.05 and 48,286,951.90
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Solution
The fourth proportional to 66,426,804.70, 99,640,207.05 and 48,286,951.90 is: 72,430,427.85
Step by Step Solution
- Step 1: Write the proportion equation
66,426,804.70 : 99,640,207.05 = 48,286,951.90 : x - Step 2: Convert to fraction form
66,426,804.70/99,640,207.05 = 48,286,951.90/x - Step 3: Cross multiply
66,426,804.70x = 99,640,207.05 × 48,286,951.90 - Step 4: Simplify right side
66,426,804.70x = 4,811,321,885,129,391 - Step 5: Solve for x
x = 4,811,321,885,129,391/66,426,804.70 - Step 6: Final answer
x = 72,430,427.85
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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.