Finding the Fourth Proportional to 11,915,029.60, 17,879,931.60 and 6,239,327.20
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Solution
The fourth proportional to 11,915,029.60, 17,879,931.60 and 6,239,327.20 is: 9,362,859.12
Step by Step Solution
- Step 1: Write the proportion equation
11,915,029.60 : 17,879,931.60 = 6,239,327.20 : x - Step 2: Convert to fraction form
11,915,029.60/17,879,931.60 = 6,239,327.20/x - Step 3: Cross multiply
11,915,029.60x = 17,879,931.60 × 6,239,327.20 - Step 4: Simplify right side
11,915,029.60x = 111,558,743,566,019.53 - Step 5: Solve for x
x = 111,558,743,566,019.53/11,915,029.60 - Step 6: Final answer
x = 9,362,859.12
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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.