Finding the Fourth Proportional to 10,940,720.40, 16,411,780.80 and 4,209,134.40
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Solution
The fourth proportional to 10,940,720.40, 16,411,780.80 and 4,209,134.40 is: 6,313,970.98
Step by Step Solution
- Step 1: Write the proportion equation
10,940,720.40 : 16,411,780.80 = 4,209,134.40 : x - Step 2: Convert to fraction form
10,940,720.40/16,411,780.80 = 4,209,134.40/x - Step 3: Cross multiply
10,940,720.40x = 16,411,780.80 × 4,209,134.40 - Step 4: Simplify right side
10,940,720.40x = 69,079,391,130,539.53 - Step 5: Solve for x
x = 69,079,391,130,539.53/10,940,720.40 - Step 6: Final answer
x = 6,313,970.98
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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.