Finding the Fourth Proportional to 43,456,821.70, 65,185,232.55 and 28,340,277.70
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Solution
The fourth proportional to 43,456,821.70, 65,185,232.55 and 28,340,277.70 is: 42,510,416.55
Step by Step Solution
- Step 1: Write the proportion equation
43,456,821.70 : 65,185,232.55 = 28,340,277.70 : x - Step 2: Convert to fraction form
43,456,821.70/65,185,232.55 = 28,340,277.70/x - Step 3: Cross multiply
43,456,821.70x = 65,185,232.55 × 28,340,277.70 - Step 4: Simplify right side
43,456,821.70x = 1,847,367,592,406,079 - Step 5: Solve for x
x = 1,847,367,592,406,079/43,456,821.70 - Step 6: Final answer
x = 42,510,416.55
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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.