Finding the Fourth Proportional to 2,139,077.68, 3,206,457.44 and 1,340,919.74
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Solution
The fourth proportional to 2,139,077.68, 3,206,457.44 and 1,340,919.74 is: 2,010,026.15
Step by Step Solution
- Step 1: Write the proportion equation
2,139,077.68 : 3,206,457.44 = 1,340,919.74 : x - Step 2: Convert to fraction form
2,139,077.68/3,206,457.44 = 1,340,919.74/x - Step 3: Cross multiply
2,139,077.68x = 3,206,457.44 × 1,340,919.74 - Step 4: Simplify right side
2,139,077.68x = 4,299,602,076,765.87 - Step 5: Solve for x
x = 4,299,602,076,765.87/2,139,077.68 - Step 6: Final answer
x = 2,010,026.15
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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.