Finding the Fourth Proportional to 3,934,831.36, 5,430,078.53 and 2,281,299.82
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Solution
The fourth proportional to 3,934,831.36, 5,430,078.53 and 2,281,299.82 is: 3,148,200.28
Step by Step Solution
- Step 1: Write the proportion equation
3,934,831.36 : 5,430,078.53 = 2,281,299.82 : x - Step 2: Convert to fraction form
3,934,831.36/5,430,078.53 = 2,281,299.82/x - Step 3: Cross multiply
3,934,831.36x = 5,430,078.53 × 2,281,299.82 - Step 4: Simplify right side
3,934,831.36x = 12,387,637,173,074.87 - Step 5: Solve for x
x = 12,387,637,173,074.87/3,934,831.36 - Step 6: Final answer
x = 3,148,200.28
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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.