Finding the Fourth Proportional to 5,275,612.98, 7,909,285.57 and 2,083,128.80
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Solution
The fourth proportional to 5,275,612.98, 7,909,285.57 and 2,083,128.80 is: 3,123,060.88
Step by Step Solution
- Step 1: Write the proportion equation
5,275,612.98 : 7,909,285.57 = 2,083,128.80 : x - Step 2: Convert to fraction form
5,275,612.98/7,909,285.57 = 2,083,128.80/x - Step 3: Cross multiply
5,275,612.98x = 7,909,285.57 × 2,083,128.80 - Step 4: Simplify right side
5,275,612.98x = 16,476,060,513,537.17 - Step 5: Solve for x
x = 16,476,060,513,537.17/5,275,612.98 - Step 6: Final answer
x = 3,123,060.88
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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.