Finding the Fourth Proportional to 11,780,416.42, 17,652,590.17 and 7,927,985.95
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Solution
The fourth proportional to 11,780,416.42, 17,652,590.17 and 7,927,985.95 is: 11,879,842.09
Step by Step Solution
- Step 1: Write the proportion equation
11,780,416.42 : 17,652,590.17 = 7,927,985.95 : x - Step 2: Convert to fraction form
11,780,416.42/17,652,590.17 = 7,927,985.95/x - Step 3: Cross multiply
11,780,416.42x = 17,652,590.17 × 7,927,985.95 - Step 4: Simplify right side
11,780,416.42x = 139,949,486,848,868.12 - Step 5: Solve for x
x = 139,949,486,848,868.12/11,780,416.42 - Step 6: Final answer
x = 11,879,842.09
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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.