Finding the Fourth Proportional to 1,319,532,466.32, 1,820,848,609.80 and 762,651,582.48
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Solution
The fourth proportional to 1,319,532,466.32, 1,820,848,609.80 and 762,651,582.48 is: 1,052,397,806.92
Step by Step Solution
- Step 1: Write the proportion equation
1,319,532,466.32 : 1,820,848,609.80 = 762,651,582.48 : x - Step 2: Convert to fraction form
1,319,532,466.32/1,820,848,609.80 = 762,651,582.48/x - Step 3: Cross multiply
1,319,532,466.32x = 1,820,848,609.80 × 762,651,582.48 - Step 4: Simplify right side
1,319,532,466.32x = 1,388,673,073,720,477,952 - Step 5: Solve for x
x = 1,388,673,073,720,477,952/1,319,532,466.32 - Step 6: Final answer
x = 1,052,397,806.92
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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.