Finding the Fourth Proportional to 81,082,698.48, 121,639,695.48 and 26,480,604.96
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Solution
The fourth proportional to 81,082,698.48, 121,639,695.48 and 26,480,604.96 is: 39,726,017.80
Step by Step Solution
- Step 1: Write the proportion equation
81,082,698.48 : 121,639,695.48 = 26,480,604.96 : x - Step 2: Convert to fraction form
81,082,698.48/121,639,695.48 = 26,480,604.96/x - Step 3: Cross multiply
81,082,698.48x = 121,639,695.48 × 26,480,604.96 - Step 4: Simplify right side
81,082,698.48x = 3,221,092,723,460,578 - Step 5: Solve for x
x = 3,221,092,723,460,578/81,082,698.48 - Step 6: Final answer
x = 39,726,017.80
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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.