Finding the Fourth Proportional to 11,503,831.36, 15,881,040 and 7,154,318.88
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Solution
The fourth proportional to 11,503,831.36, 15,881,040 and 7,154,318.88 is: 9,876,537.72
Step by Step Solution
- Step 1: Write the proportion equation
11,503,831.36 : 15,881,040 = 7,154,318.88 : x - Step 2: Convert to fraction form
11,503,831.36/15,881,040 = 7,154,318.88/x - Step 3: Cross multiply
11,503,831.36x = 15,881,040 × 7,154,318.88 - Step 4: Simplify right side
11,503,831.36x = 113,618,024,306,035.20 - Step 5: Solve for x
x = 113,618,024,306,035.20/11,503,831.36 - Step 6: Final answer
x = 9,876,537.72
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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.