Finding the Fourth Proportional to 420,786,293.16, 580,685,871.36 and 235,147,309.08
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Solution
The fourth proportional to 420,786,293.16, 580,685,871.36 and 235,147,309.08 is: 324,503,726.22
Step by Step Solution
- Step 1: Write the proportion equation
420,786,293.16 : 580,685,871.36 = 235,147,309.08 : x - Step 2: Convert to fraction form
420,786,293.16/580,685,871.36 = 235,147,309.08/x - Step 3: Cross multiply
420,786,293.16x = 580,685,871.36 × 235,147,309.08 - Step 4: Simplify right side
420,786,293.16x = 136,546,720,071,079,056 - Step 5: Solve for x
x = 136,546,720,071,079,056/420,786,293.16 - Step 6: Final answer
x = 324,503,726.22
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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.