Finding the Fourth Proportional to 21,817,134.29, 30,107,877.23 and 12,027,928.79
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Solution
The fourth proportional to 21,817,134.29, 30,107,877.23 and 12,027,928.79 is: 16,598,669.59
Step by Step Solution
- Step 1: Write the proportion equation
21,817,134.29 : 30,107,877.23 = 12,027,928.79 : x - Step 2: Convert to fraction form
21,817,134.29/30,107,877.23 = 12,027,928.79/x - Step 3: Cross multiply
21,817,134.29x = 30,107,877.23 × 12,027,928.79 - Step 4: Simplify right side
21,817,134.29x = 362,135,403,445,842 - Step 5: Solve for x
x = 362,135,403,445,842/21,817,134.29 - Step 6: Final answer
x = 16,598,669.59
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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.