Finding the Fourth Proportional to 122,925,380.79, 169,634,976.48 and 67,169,576.33
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Solution
The fourth proportional to 122,925,380.79, 169,634,976.48 and 67,169,576.33 is: 92,692,895.70
Step by Step Solution
- Step 1: Write the proportion equation
122,925,380.79 : 169,634,976.48 = 67,169,576.33 : x - Step 2: Convert to fraction form
122,925,380.79/169,634,976.48 = 67,169,576.33/x - Step 3: Cross multiply
122,925,380.79x = 169,634,976.48 × 67,169,576.33 - Step 4: Simplify right side
122,925,380.79x = 11,394,309,500,062,940 - Step 5: Solve for x
x = 11,394,309,500,062,940/122,925,380.79 - Step 6: Final answer
x = 92,692,895.70
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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.