Finding the Fourth Proportional to 19,991,203.42, 29,986,805.26 and 4,845,134.92
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Solution
The fourth proportional to 19,991,203.42, 29,986,805.26 and 4,845,134.92 is: 7,267,702.41
Step by Step Solution
- Step 1: Write the proportion equation
19,991,203.42 : 29,986,805.26 = 4,845,134.92 : x - Step 2: Convert to fraction form
19,991,203.42/29,986,805.26 = 4,845,134.92/x - Step 3: Cross multiply
19,991,203.42x = 29,986,805.26 × 4,845,134.92 - Step 4: Simplify right side
19,991,203.42x = 145,290,117,304,465.69 - Step 5: Solve for x
x = 145,290,117,304,465.69/19,991,203.42 - Step 6: Final answer
x = 7,267,702.41
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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.