Finding the Fourth Proportional to 5,375,966.90, 7,418,831.11 and 2,961,518.90
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Solution
The fourth proportional to 5,375,966.90, 7,418,831.11 and 2,961,518.90 is: 4,086,894.31
Step by Step Solution
- Step 1: Write the proportion equation
5,375,966.90 : 7,418,831.11 = 2,961,518.90 : x - Step 2: Convert to fraction form
5,375,966.90/7,418,831.11 = 2,961,518.90/x - Step 3: Cross multiply
5,375,966.90x = 7,418,831.11 × 2,961,518.90 - Step 4: Simplify right side
5,375,966.90x = 21,971,008,503,675.03 - Step 5: Solve for x
x = 21,971,008,503,675.03/5,375,966.90 - Step 6: Final answer
x = 4,086,894.31
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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.