Finding the Fourth Proportional to 1,820,473,580.20, 2,512,257,907.66 and 985,107,114.76
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Solution
The fourth proportional to 1,820,473,580.20, 2,512,257,907.66 and 985,107,114.76 is: 1,359,450,181.46
Step by Step Solution
- Step 1: Write the proportion equation
1,820,473,580.20 : 2,512,257,907.66 = 985,107,114.76 : x - Step 2: Convert to fraction form
1,820,473,580.20/2,512,257,907.66 = 985,107,114.76/x - Step 3: Cross multiply
1,820,473,580.20x = 2,512,257,907.66 × 985,107,114.76 - Step 4: Simplify right side
1,820,473,580.20x = 2,474,843,138,947,936,768 - Step 5: Solve for x
x = 2,474,843,138,947,936,768/1,820,473,580.20 - Step 6: Final answer
x = 1,359,450,181.46
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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.