Finding the Fourth Proportional to 409,751,324.19, 565,099,469.81 and 290,437,920.81
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Solution
The fourth proportional to 409,751,324.19, 565,099,469.81 and 290,437,920.81 is: 400,551,030.28
Step by Step Solution
- Step 1: Write the proportion equation
409,751,324.19 : 565,099,469.81 = 290,437,920.81 : x - Step 2: Convert to fraction form
409,751,324.19/565,099,469.81 = 290,437,920.81/x - Step 3: Cross multiply
409,751,324.19x = 565,099,469.81 × 290,437,920.81 - Step 4: Simplify right side
409,751,324.19x = 164,126,315,062,086,720 - Step 5: Solve for x
x = 164,126,315,062,086,720/409,751,324.19 - Step 6: Final answer
x = 400,551,030.28
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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.