Finding the Fourth Proportional to 38,296,987.20, 57,482,805.60 and 19,149,364.80
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Solution
The fourth proportional to 38,296,987.20, 57,482,805.60 and 19,149,364.80 is: 28,742,710.45
Step by Step Solution
- Step 1: Write the proportion equation
38,296,987.20 : 57,482,805.60 = 19,149,364.80 : x - Step 2: Convert to fraction form
38,296,987.20/57,482,805.60 = 19,149,364.80/x - Step 3: Cross multiply
38,296,987.20x = 57,482,805.60 × 19,149,364.80 - Step 4: Simplify right side
38,296,987.20x = 1,100,759,214,161,883 - Step 5: Solve for x
x = 1,100,759,214,161,883/38,296,987.20 - Step 6: Final answer
x = 28,742,710.45
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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.