Finding the Fourth Proportional to 128,121,708.79, 192,215,335.35 and 37,245,297.79
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Solution
The fourth proportional to 128,121,708.79, 192,215,335.35 and 37,245,297.79 is: 55,877,473.63
Step by Step Solution
- Step 1: Write the proportion equation
128,121,708.79 : 192,215,335.35 = 37,245,297.79 : x - Step 2: Convert to fraction form
128,121,708.79/192,215,335.35 = 37,245,297.79/x - Step 3: Cross multiply
128,121,708.79x = 192,215,335.35 × 37,245,297.79 - Step 4: Simplify right side
128,121,708.79x = 7,159,117,404,915,463 - Step 5: Solve for x
x = 7,159,117,404,915,463/128,121,708.79 - Step 6: Final answer
x = 55,877,473.63
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.