Finding the Fourth Proportional to 38,628,981.20, 57,950,470.20 and 19,411,374.80
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Solution
The fourth proportional to 38,628,981.20, 57,950,470.20 and 19,411,374.80 is: 29,120,578.95
Step by Step Solution
- Step 1: Write the proportion equation
38,628,981.20 : 57,950,470.20 = 19,411,374.80 : x - Step 2: Convert to fraction form
38,628,981.20/57,950,470.20 = 19,411,374.80/x - Step 3: Cross multiply
38,628,981.20x = 57,950,470.20 × 19,411,374.80 - Step 4: Simplify right side
38,628,981.20x = 1,124,898,296,888,431 - Step 5: Solve for x
x = 1,124,898,296,888,431/38,628,981.20 - Step 6: Final answer
x = 29,120,578.95
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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.