Finding the Fourth Proportional to 2,997,948.11, 4,137,406.70 and 1,910,707.79
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Solution
The fourth proportional to 2,997,948.11, 4,137,406.70 and 1,910,707.79 is: 2,636,928.63
Step by Step Solution
- Step 1: Write the proportion equation
2,997,948.11 : 4,137,406.70 = 1,910,707.79 : x - Step 2: Convert to fraction form
2,997,948.11/4,137,406.70 = 1,910,707.79/x - Step 3: Cross multiply
2,997,948.11x = 4,137,406.70 × 1,910,707.79 - Step 4: Simplify right side
2,997,948.11x = 7,905,375,181,847.62 - Step 5: Solve for x
x = 7,905,375,181,847.62/2,997,948.11 - Step 6: Final answer
x = 2,636,928.63
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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.