Finding the Fourth Proportional to 136,800,215.22, 188,783,440.16 and 74,074,986.68
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Solution
The fourth proportional to 136,800,215.22, 188,783,440.16 and 74,074,986.68 is: 102,223,017.65
Step by Step Solution
- Step 1: Write the proportion equation
136,800,215.22 : 188,783,440.16 = 74,074,986.68 : x - Step 2: Convert to fraction form
136,800,215.22/188,783,440.16 = 74,074,986.68/x - Step 3: Cross multiply
136,800,215.22x = 188,783,440.16 × 74,074,986.68 - Step 4: Simplify right side
136,800,215.22x = 13,984,130,815,256,578 - Step 5: Solve for x
x = 13,984,130,815,256,578/136,800,215.22 - Step 6: Final answer
x = 102,223,017.65
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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.