Finding the Fourth Proportional to 14,889,987.70, 20,803,467.50 and 14,889,987.70
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Solution
The fourth proportional to 14,889,987.70, 20,803,467.50 and 14,889,987.70 is: 20,803,467.50
Step by Step Solution
- Step 1: Write the proportion equation
14,889,987.70 : 20,803,467.50 = 14,889,987.70 : x - Step 2: Convert to fraction form
14,889,987.70/20,803,467.50 = 14,889,987.70/x - Step 3: Cross multiply
14,889,987.70x = 20,803,467.50 × 14,889,987.70 - Step 4: Simplify right side
14,889,987.70x = 309,763,375,192,349.75 - Step 5: Solve for x
x = 309,763,375,192,349.75/14,889,987.70 - Step 6: Final answer
x = 20,803,467.50
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.