Finding the Fourth Proportional to 99,207,409, 136,919,053.86 and 55,747,348.84
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Solution
The fourth proportional to 99,207,409, 136,919,053.86 and 55,747,348.84 is: 76,938,550.61
Step by Step Solution
- Step 1: Write the proportion equation
99,207,409 : 136,919,053.86 = 55,747,348.84 : x - Step 2: Convert to fraction form
99,207,409/136,919,053.86 = 55,747,348.84/x - Step 3: Cross multiply
99,207,409x = 136,919,053.86 × 55,747,348.84 - Step 4: Simplify right side
99,207,409x = 7,632,874,258,376,170 - Step 5: Solve for x
x = 7,632,874,258,376,170/99,207,409 - Step 6: Final answer
x = 76,938,550.61
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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.