Finding the Fourth Proportional to 140,628,606.48, 194,067,448.92 and 77,908,780.08
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Solution
The fourth proportional to 140,628,606.48, 194,067,448.92 and 77,908,780.08 is: 107,514,100.99
Step by Step Solution
- Step 1: Write the proportion equation
140,628,606.48 : 194,067,448.92 = 77,908,780.08 : x - Step 2: Convert to fraction form
140,628,606.48/194,067,448.92 = 77,908,780.08/x - Step 3: Cross multiply
140,628,606.48x = 194,067,448.92 × 77,908,780.08 - Step 4: Simplify right side
140,628,606.48x = 15,119,558,198,594,912 - Step 5: Solve for x
x = 15,119,558,198,594,912/140,628,606.48 - Step 6: Final answer
x = 107,514,100.99
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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.