Finding the Fourth Proportional to 12,976,704.95, 19,466,992.61 and 4,778,716.65
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Solution
The fourth proportional to 12,976,704.95, 19,466,992.61 and 4,778,716.65 is: 7,168,787.61
Step by Step Solution
- Step 1: Write the proportion equation
12,976,704.95 : 19,466,992.61 = 4,778,716.65 : x - Step 2: Convert to fraction form
12,976,704.95/19,466,992.61 = 4,778,716.65/x - Step 3: Cross multiply
12,976,704.95x = 19,466,992.61 × 4,778,716.65 - Step 4: Simplify right side
12,976,704.95x = 93,027,241,631,859.34 - Step 5: Solve for x
x = 93,027,241,631,859.34/12,976,704.95 - Step 6: Final answer
x = 7,168,787.61
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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.