Finding the Fourth Proportional to 19,729,276.20, 29,593,914.30 and 18,217,621.80
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Solution
The fourth proportional to 19,729,276.20, 29,593,914.30 and 18,217,621.80 is: 27,326,432.70
Step by Step Solution
- Step 1: Write the proportion equation
19,729,276.20 : 29,593,914.30 = 18,217,621.80 : x - Step 2: Convert to fraction form
19,729,276.20/29,593,914.30 = 18,217,621.80/x - Step 3: Cross multiply
19,729,276.20x = 29,593,914.30 × 18,217,621.80 - Step 4: Simplify right side
19,729,276.20x = 539,130,738,299,011.75 - Step 5: Solve for x
x = 539,130,738,299,011.75/19,729,276.20 - Step 6: Final answer
x = 27,326,432.70
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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.