Finding the Fourth Proportional to 122,925,381.09, 169,634,976.91 and 67,169,576.63
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Solution
The fourth proportional to 122,925,381.09, 169,634,976.91 and 67,169,576.63 is: 92,692,896.12
Step by Step Solution
- Step 1: Write the proportion equation
122,925,381.09 : 169,634,976.91 = 67,169,576.63 : x - Step 2: Convert to fraction form
122,925,381.09/169,634,976.91 = 67,169,576.63/x - Step 3: Cross multiply
122,925,381.09x = 169,634,976.91 × 67,169,576.63 - Step 4: Simplify right side
122,925,381.09x = 11,394,309,579,500,502 - Step 5: Solve for x
x = 11,394,309,579,500,502/122,925,381.09 - Step 6: Final answer
x = 92,692,896.12
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.