Finding the Fourth Proportional to 1,771,474,237.20, 2,657,211,355.80 and 1,279,147,294.80
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Solution
The fourth proportional to 1,771,474,237.20, 2,657,211,355.80 and 1,279,147,294.80 is: 1,918,720,942.20
Step by Step Solution
- Step 1: Write the proportion equation
1,771,474,237.20 : 2,657,211,355.80 = 1,279,147,294.80 : x - Step 2: Convert to fraction form
1,771,474,237.20/2,657,211,355.80 = 1,279,147,294.80/x - Step 3: Cross multiply
1,771,474,237.20x = 2,657,211,355.80 × 1,279,147,294.80 - Step 4: Simplify right side
1,771,474,237.20x = 3,398,964,717,483,410,432 - Step 5: Solve for x
x = 3,398,964,717,483,410,432/1,771,474,237.20 - Step 6: Final answer
x = 1,918,720,942.20
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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.