Finding the Fourth Proportional to 1,427,166,930.80, 2,140,750,396.20 and 1,277,513,145.20
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Solution
The fourth proportional to 1,427,166,930.80, 2,140,750,396.20 and 1,277,513,145.20 is: 1,916,269,717.80
Step by Step Solution
- Step 1: Write the proportion equation
1,427,166,930.80 : 2,140,750,396.20 = 1,277,513,145.20 : x - Step 2: Convert to fraction form
1,427,166,930.80/2,140,750,396.20 = 1,277,513,145.20/x - Step 3: Cross multiply
1,427,166,930.80x = 2,140,750,396.20 × 1,277,513,145.20 - Step 4: Simplify right side
1,427,166,930.80x = 2,734,836,771,737,608,192 - Step 5: Solve for x
x = 2,734,836,771,737,608,192/1,427,166,930.80 - Step 6: Final answer
x = 1,916,269,717.80
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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.