Finding the Fourth Proportional to 14,518,920.84, 20,036,367.32 and 7,903,700.68
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Solution
The fourth proportional to 14,518,920.84, 20,036,367.32 and 7,903,700.68 is: 10,907,246.60
Step by Step Solution
- Step 1: Write the proportion equation
14,518,920.84 : 20,036,367.32 = 7,903,700.68 : x - Step 2: Convert to fraction form
14,518,920.84/20,036,367.32 = 7,903,700.68/x - Step 3: Cross multiply
14,518,920.84x = 20,036,367.32 × 7,903,700.68 - Step 4: Simplify right side
14,518,920.84x = 158,361,450,011,813.78 - Step 5: Solve for x
x = 158,361,450,011,813.78/14,518,920.84 - Step 6: Final answer
x = 10,907,246.60
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.