Finding the Fourth Proportional to 1,913,344,816.65, 2,640,415,825.04 and 1,033,278,520.65
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Solution
The fourth proportional to 1,913,344,816.65, 2,640,415,825.04 and 1,033,278,520.65 is: 1,425,924,346.65
Step by Step Solution
- Step 1: Write the proportion equation
1,913,344,816.65 : 2,640,415,825.04 = 1,033,278,520.65 : x - Step 2: Convert to fraction form
1,913,344,816.65/2,640,415,825.04 = 1,033,278,520.65/x - Step 3: Cross multiply
1,913,344,816.65x = 2,640,415,825.04 × 1,033,278,520.65 - Step 4: Simplify right side
1,913,344,816.65x = 2,728,284,957,583,244,288 - Step 5: Solve for x
x = 2,728,284,957,583,244,288/1,913,344,816.65 - Step 6: Final answer
x = 1,425,924,346.65
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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.