Finding the Fourth Proportional to 1,322,729,234.07, 1,984,136,823.65 and 389,973,863.67
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Solution
The fourth proportional to 1,322,729,234.07, 1,984,136,823.65 and 389,973,863.67 is: 584,973,464.89
Step by Step Solution
- Step 1: Write the proportion equation
1,322,729,234.07 : 1,984,136,823.65 = 389,973,863.67 : x - Step 2: Convert to fraction form
1,322,729,234.07/1,984,136,823.65 = 389,973,863.67/x - Step 3: Cross multiply
1,322,729,234.07x = 1,984,136,823.65 × 389,973,863.67 - Step 4: Simplify right side
1,322,729,234.07x = 773,761,503,168,712,064 - Step 5: Solve for x
x = 773,761,503,168,712,064/1,322,729,234.07 - Step 6: Final answer
x = 584,973,464.89
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.