Finding the Fourth Proportional to 10,932,987.20, 16,406,479.20 and 6,384,027.20
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Solution
The fourth proportional to 10,932,987.20, 16,406,479.20 and 6,384,027.20 is: 9,580,127.33
Step by Step Solution
- Step 1: Write the proportion equation
10,932,987.20 : 16,406,479.20 = 6,384,027.20 : x - Step 2: Convert to fraction form
10,932,987.20/16,406,479.20 = 6,384,027.20/x - Step 3: Cross multiply
10,932,987.20x = 16,406,479.20 × 6,384,027.20 - Step 4: Simplify right side
10,932,987.20x = 104,739,409,469,034.23 - Step 5: Solve for x
x = 104,739,409,469,034.23/10,932,987.20 - Step 6: Final answer
x = 9,580,127.33
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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.