Finding the Fourth Proportional to 5,199,510,842.12, 7,175,324,961.96 and 2,971,890,860.06
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Solution
The fourth proportional to 5,199,510,842.12, 7,175,324,961.96 and 2,971,890,860.06 is: 4,101,209,386.79
Step by Step Solution
- Step 1: Write the proportion equation
5,199,510,842.12 : 7,175,324,961.96 = 2,971,890,860.06 : x - Step 2: Convert to fraction form
5,199,510,842.12/7,175,324,961.96 = 2,971,890,860.06/x - Step 3: Cross multiply
5,199,510,842.12x = 7,175,324,961.96 × 2,971,890,860.06 - Step 4: Simplify right side
5,199,510,842.12x = 21,324,282,672,409,292,800 - Step 5: Solve for x
x = 21,324,282,672,409,292,800/5,199,510,842.12 - Step 6: Final answer
x = 4,101,209,386.79
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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.