Finding the Fourth Proportional to 5,274,144,215.18, 7,278,051,731.65 and 3,130,842,489.96
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Solution
The fourth proportional to 5,274,144,215.18, 7,278,051,731.65 and 3,130,842,489.96 is: 4,320,403,969.99
Step by Step Solution
- Step 1: Write the proportion equation
5,274,144,215.18 : 7,278,051,731.65 = 3,130,842,489.96 : x - Step 2: Convert to fraction form
5,274,144,215.18/7,278,051,731.65 = 3,130,842,489.96/x - Step 3: Cross multiply
5,274,144,215.18x = 7,278,051,731.65 × 3,130,842,489.96 - Step 4: Simplify right side
5,274,144,215.18x = 22,786,433,605,568,950,272 - Step 5: Solve for x
x = 22,786,433,605,568,950,272/5,274,144,215.18 - Step 6: Final answer
x = 4,320,403,969.99
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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.