Finding the Fourth Proportional to 28,790,122.66, 39,730,371.15 and 15,737,433.28
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Solution
The fourth proportional to 28,790,122.66, 39,730,371.15 and 15,737,433.28 is: 21,717,658.95
Step by Step Solution
- Step 1: Write the proportion equation
28,790,122.66 : 39,730,371.15 = 15,737,433.28 : x - Step 2: Convert to fraction form
28,790,122.66/39,730,371.15 = 15,737,433.28/x - Step 3: Cross multiply
28,790,122.66x = 39,730,371.15 × 15,737,433.28 - Step 4: Simplify right side
28,790,122.66x = 625,254,065,162,761.88 - Step 5: Solve for x
x = 625,254,065,162,761.88/28,790,122.66 - Step 6: Final answer
x = 21,717,658.95
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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.