Finding the Fourth Proportional to 3,934,876.32, 5,430,147.84 and 2,216,026.08
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Solution
The fourth proportional to 3,934,876.32, 5,430,147.84 and 2,216,026.08 is: 3,058,126.42
Step by Step Solution
- Step 1: Write the proportion equation
3,934,876.32 : 5,430,147.84 = 2,216,026.08 : x - Step 2: Convert to fraction form
3,934,876.32/5,430,147.84 = 2,216,026.08/x - Step 3: Cross multiply
3,934,876.32x = 5,430,147.84 × 2,216,026.08 - Step 4: Simplify right side
3,934,876.32x = 12,033,349,231,695.67 - Step 5: Solve for x
x = 12,033,349,231,695.67/3,934,876.32 - Step 6: Final answer
x = 3,058,126.42
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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.