Finding the Fourth Proportional to 128,941,067.40, 193,411,601.10 and 121,376,574.60
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Solution
The fourth proportional to 128,941,067.40, 193,411,601.10 and 121,376,574.60 is: 182,064,861.90
Step by Step Solution
- Step 1: Write the proportion equation
128,941,067.40 : 193,411,601.10 = 121,376,574.60 : x - Step 2: Convert to fraction form
128,941,067.40/193,411,601.10 = 121,376,574.60/x - Step 3: Cross multiply
128,941,067.40x = 193,411,601.10 × 121,376,574.60 - Step 4: Simplify right side
128,941,067.40x = 23,475,637,629,419,592 - Step 5: Solve for x
x = 23,475,637,629,419,592/128,941,067.40 - Step 6: Final answer
x = 182,064,861.90
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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.