Finding the Fourth Proportional to 54,402,458.20, 81,603,687.30 and 38,246,651.80
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Solution
The fourth proportional to 54,402,458.20, 81,603,687.30 and 38,246,651.80 is: 57,369,977.70
Step by Step Solution
- Step 1: Write the proportion equation
54,402,458.20 : 81,603,687.30 = 38,246,651.80 : x - Step 2: Convert to fraction form
54,402,458.20/81,603,687.30 = 38,246,651.80/x - Step 3: Cross multiply
54,402,458.20x = 81,603,687.30 × 38,246,651.80 - Step 4: Simplify right side
54,402,458.20x = 3,121,067,813,759,182 - Step 5: Solve for x
x = 3,121,067,813,759,182/54,402,458.20 - Step 6: Final answer
x = 57,369,977.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.