Finding the Fourth Proportional to 129,211,689.47, 193,794,521.49 and 51,482,079.05
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Solution
The fourth proportional to 129,211,689.47, 193,794,521.49 and 51,482,079.05 is: 77,213,949.57
Step by Step Solution
- Step 1: Write the proportion equation
129,211,689.47 : 193,794,521.49 = 51,482,079.05 : x - Step 2: Convert to fraction form
129,211,689.47/193,794,521.49 = 51,482,079.05/x - Step 3: Cross multiply
129,211,689.47x = 193,794,521.49 × 51,482,079.05 - Step 4: Simplify right side
129,211,689.47x = 9,976,944,873,836,132 - Step 5: Solve for x
x = 9,976,944,873,836,132/129,211,689.47 - Step 6: Final answer
x = 77,213,949.57
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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.