Finding the Fourth Proportional to 1,276,241,425.80, 1,914,362,138.70 and 1,092,575,416.20
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Solution
The fourth proportional to 1,276,241,425.80, 1,914,362,138.70 and 1,092,575,416.20 is: 1,638,863,124.30
Step by Step Solution
- Step 1: Write the proportion equation
1,276,241,425.80 : 1,914,362,138.70 = 1,092,575,416.20 : x - Step 2: Convert to fraction form
1,276,241,425.80/1,914,362,138.70 = 1,092,575,416.20/x - Step 3: Cross multiply
1,276,241,425.80x = 1,914,362,138.70 × 1,092,575,416.20 - Step 4: Simplify right side
1,276,241,425.80x = 2,091,585,010,447,674,880 - Step 5: Solve for x
x = 2,091,585,010,447,674,880/1,276,241,425.80 - Step 6: Final answer
x = 1,638,863,124.30
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1.5x scale
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.