Finding the Fourth Proportional to 21,334,544.60, 29,441,749.12 and 11,544,987.68
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Solution
The fourth proportional to 21,334,544.60, 29,441,749.12 and 11,544,987.68 is: 15,932,124.98
Step by Step Solution
- Step 1: Write the proportion equation
21,334,544.60 : 29,441,749.12 = 11,544,987.68 : x - Step 2: Convert to fraction form
21,334,544.60/29,441,749.12 = 11,544,987.68/x - Step 3: Cross multiply
21,334,544.60x = 29,441,749.12 × 11,544,987.68 - Step 4: Simplify right side
21,334,544.60x = 339,904,630,868,050.88 - Step 5: Solve for x
x = 339,904,630,868,050.88/21,334,544.60 - Step 6: Final answer
x = 15,932,124.98
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.