Finding the Fourth Proportional to 12,832,542.87, 19,251,241.98 and 5,156,785.23
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Solution
The fourth proportional to 12,832,542.87, 19,251,241.98 and 5,156,785.23 is: 7,736,153.41
Step by Step Solution
- Step 1: Write the proportion equation
12,832,542.87 : 19,251,241.98 = 5,156,785.23 : x - Step 2: Convert to fraction form
12,832,542.87/19,251,241.98 = 5,156,785.23/x - Step 3: Cross multiply
12,832,542.87x = 19,251,241.98 × 5,156,785.23 - Step 4: Simplify right side
12,832,542.87x = 99,274,520,301,619.97 - Step 5: Solve for x
x = 99,274,520,301,619.97/12,832,542.87 - Step 6: Final answer
x = 7,736,153.41
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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.