Finding the Fourth Proportional to 21,395,908.96, 29,526,351.86 and 12,103,279.88
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Solution
The fourth proportional to 21,395,908.96, 29,526,351.86 and 12,103,279.88 is: 16,702,524.81
Step by Step Solution
- Step 1: Write the proportion equation
21,395,908.96 : 29,526,351.86 = 12,103,279.88 : x - Step 2: Convert to fraction form
21,395,908.96/29,526,351.86 = 12,103,279.88/x - Step 3: Cross multiply
21,395,908.96x = 29,526,351.86 × 12,103,279.88 - Step 4: Simplify right side
21,395,908.96x = 357,365,700,279,565 - Step 5: Solve for x
x = 357,365,700,279,565/21,395,908.96 - Step 6: Final answer
x = 16,702,524.81
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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.