Finding the Fourth Proportional to 27,960,318.66, 38,565,363.60 and 18,663,201.21
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Solution
The fourth proportional to 27,960,318.66, 38,565,363.60 and 18,663,201.21 is: 25,741,950.56
Step by Step Solution
- Step 1: Write the proportion equation
27,960,318.66 : 38,565,363.60 = 18,663,201.21 : x - Step 2: Convert to fraction form
27,960,318.66/38,565,363.60 = 18,663,201.21/x - Step 3: Cross multiply
27,960,318.66x = 38,565,363.60 × 18,663,201.21 - Step 4: Simplify right side
27,960,318.66x = 719,753,140,603,610 - Step 5: Solve for x
x = 719,753,140,603,610/27,960,318.66 - Step 6: Final answer
x = 25,741,950.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.