Finding the Fourth Proportional to 2,839,912,270.24, 3,919,230,322.32 and 1,586,879,543.20
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Solution
The fourth proportional to 2,839,912,270.24, 3,919,230,322.32 and 1,586,879,543.20 is: 2,189,978,362.62
Step by Step Solution
- Step 1: Write the proportion equation
2,839,912,270.24 : 3,919,230,322.32 = 1,586,879,543.20 : x - Step 2: Convert to fraction form
2,839,912,270.24/3,919,230,322.32 = 1,586,879,543.20/x - Step 3: Cross multiply
2,839,912,270.24x = 3,919,230,322.32 × 1,586,879,543.20 - Step 4: Simplify right side
2,839,912,270.24x = 6,219,346,423,578,750,976 - Step 5: Solve for x
x = 6,219,346,423,578,750,976/2,839,912,270.24 - Step 6: Final answer
x = 2,189,978,362.62
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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.