Finding the Fourth Proportional to 9,860,758.80, 14,791,138.20 and 3,129,853.20
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Solution
The fourth proportional to 9,860,758.80, 14,791,138.20 and 3,129,853.20 is: 4,694,779.80
Step by Step Solution
- Step 1: Write the proportion equation
9,860,758.80 : 14,791,138.20 = 3,129,853.20 : x - Step 2: Convert to fraction form
9,860,758.80/14,791,138.20 = 3,129,853.20/x - Step 3: Cross multiply
9,860,758.80x = 14,791,138.20 × 3,129,853.20 - Step 4: Simplify right side
9,860,758.80x = 46,294,091,226,912.24 - Step 5: Solve for x
x = 46,294,091,226,912.24/9,860,758.80 - Step 6: Final answer
x = 4,694,779.80
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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.