Finding the Fourth Proportional to 13,176,418.80, 19,764,628.20 and 4,657,033.20
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Solution
The fourth proportional to 13,176,418.80, 19,764,628.20 and 4,657,033.20 is: 6,985,549.80
Step by Step Solution
- Step 1: Write the proportion equation
13,176,418.80 : 19,764,628.20 = 4,657,033.20 : x - Step 2: Convert to fraction form
13,176,418.80/19,764,628.20 = 4,657,033.20/x - Step 3: Cross multiply
13,176,418.80x = 19,764,628.20 × 4,657,033.20 - Step 4: Simplify right side
13,176,418.80x = 92,044,529,713,056.23 - Step 5: Solve for x
x = 92,044,529,713,056.23/13,176,418.80 - Step 6: Final answer
x = 6,985,549.80
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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.