Finding the Fourth Proportional to 1,059,770,771.22, 1,462,233,491.97 and 890,867,175.66
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Solution
The fourth proportional to 1,059,770,771.22, 1,462,233,491.97 and 890,867,175.66 is: 1,229,186,401.93
Step by Step Solution
- Step 1: Write the proportion equation
1,059,770,771.22 : 1,462,233,491.97 = 890,867,175.66 : x - Step 2: Convert to fraction form
1,059,770,771.22/1,462,233,491.97 = 890,867,175.66/x - Step 3: Cross multiply
1,059,770,771.22x = 1,462,233,491.97 × 890,867,175.66 - Step 4: Simplify right side
1,059,770,771.22x = 1,302,655,821,146,773,248 - Step 5: Solve for x
x = 1,302,655,821,146,773,248/1,059,770,771.22 - Step 6: Final answer
x = 1,229,186,401.93
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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.