Finding the Fourth Proportional to 3,937,408.18, 5,912,519.96 and 2,430,669.12
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Solution
The fourth proportional to 3,937,408.18, 5,912,519.96 and 2,430,669.12 is: 3,649,959.32
Step by Step Solution
- Step 1: Write the proportion equation
3,937,408.18 : 5,912,519.96 = 2,430,669.12 : x - Step 2: Convert to fraction form
3,937,408.18/5,912,519.96 = 2,430,669.12/x - Step 3: Cross multiply
3,937,408.18x = 5,912,519.96 × 2,430,669.12 - Step 4: Simplify right side
3,937,408.18x = 14,371,379,688,155.64 - Step 5: Solve for x
x = 14,371,379,688,155.64/3,937,408.18 - Step 6: Final answer
x = 3,649,959.32
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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.