Finding the Fourth Proportional to 10,699,315.20, 14,764,809.60 and 6,115,363.20
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Solution
The fourth proportional to 10,699,315.20, 14,764,809.60 and 6,115,363.20 is: 8,439,060.97
Step by Step Solution
- Step 1: Write the proportion equation
10,699,315.20 : 14,764,809.60 = 6,115,363.20 : x - Step 2: Convert to fraction form
10,699,315.20/14,764,809.60 = 6,115,363.20/x - Step 3: Cross multiply
10,699,315.20x = 14,764,809.60 × 6,115,363.20 - Step 4: Simplify right side
10,699,315.20x = 90,292,173,282,846.72 - Step 5: Solve for x
x = 90,292,173,282,846.72/10,699,315.20 - Step 6: Final answer
x = 8,439,060.97
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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.